Euclid's Elements - Book 8, Proposition 8
Channel: Sandy Bultena
Date: 2022-06-11

Propositions:
If A:B = C:D, then 
the length of the proportional series A, S1, S2 ... Sn, B, 
will be equal to length of the proportional series C, T1, T2 ... Tn, D

PDFs:
https://github.com/sandy-bultena/Euclid/tree/master/Propositions/PDFs