Newer version of git installed on OSX but not being used. How can I find it and use it?

I’m trying to update git from the default mac version to a newer version. I already have a newer version installed (as seen below) but I don’t know where it is.

Aarons-iMac:~ AaronWilliamson$ cd
Aarons-iMac:~ AaronWilliamson$ git --version
-bash: git: command not found
Aarons-iMac:~ AaronWilliamson$ brew upgrade git
Error: git 2.2.2 already installed

How can I locate the path to where git 2.2.2 is installed so I can use it? I’m a beginner and am in the process of understanding the concepts of environment variables and the $PATH variable.

For reference, here are the contents of my .bash_profile

export PATH=/bin:/usr/local/bin:$PATH
export PATH="/usr/local/bin:$PATH"
source /usr/local/opt/chruby/share/chruby/chruby.sh
source /usr/local/opt/chruby/share/chruby/auto.sh
export PATH=./bin:/usr/local/bin:$PATH
source /usr/local/opt/chruby/share/chruby/chruby.sh
source /usr/local/opt/chruby/share/chruby/auto.sh
source ~/.profile
export PGDATA=/usr/local/var/postgres
export PGHOST=/tmp
export PGDATA=/usr/local/var/postgres
export PGHOST=/tmp
export PGDATA=/usr/local/var/postgres
export PGHOST=/tmp
export PGDATA=/usr/local/var/postgres
export PGHOST=/tmp

### Added by the Heroku Toolbelt
export PATH="/usr/local/heroku/bin:$PATH"

[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm" #             Load RVM into a shell session *as a function*
source ~/.rvm/scripts/rvm

Also, in another answer, it was recommended to rename the default mac version of git to another name which I did from git to git-apple.

Thank you for your help.

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