I would think a third year FO would make less than a Capt in China, and less than a 7th year FOs pre tax salary on the 767 in United. I am not sure what you are trying to work out?
I don't think FOs are flying 92hrs here. I will wait for them to correct me here, but they seem to be flying around the 75 to 85 hour mark. That may only be the fleet I am on though. Capts are certainly cranking out the hours.
Perhaps you should compare after tax 1st year salaries?