3rd? I was thinking 2nd. The 3rd language would then be whatever language you wanted to learn.
As for candidates, Esperanto would be one, though any language that meets the following qualifications could qualify:
1. It must be phonetic, with one letter for each sound and no silent letters.
2. It must have no unnecessary rules of grammar and no exceptions to the rules, following the most logical rules of grammar.
3. It must have, or at least come close to having, but one word for one meaning, and vice versa.
4. It must contain words stemming from various languages so as to make it easy for many to learn.
Neither English nor French meet these criteria, not by a long shot.
Ty Machjo I wasn't sure if I followed you argument correctly
Esperanto seems to be the best fit , even though it design roots are heavily euro -centric