My current configuration is
Computer A -> Proxy Server X -> Internet
I don't manage the Proxy Server X and I can't change it to become a trasparent proxy.
When people use a Trasparent proxy, they don't know they are using a proxy.
What I include in [[..]] is invisible to Computer B
Computer B -> [[trasparent proxy server Y]] -> Internet
I want to do a different thing.
I want to use a Trasparent Proxy Y on a network where the only way to access internet is through Proxy Server X so that computer B will not need to know that there is a proxy.
Something like this
Computer B -> [[trasparent proxy server Y -> Proxy Server X]] -> Internet