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# Title: Leibniz-Handschriften zur Mathematik LH 35, 1, 18
# Folio 9v, page id 00067980:0018
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Let
aCC
e aeq.
aa -cc
CC ac = zacc
aa-ec
aa cc
ac
seu C aa-ce
eritus radius
aa cc
Iaance
seu
aa -cc
Vaec - ac
seu B ut aeg. BA
ut media proportio nalis inter BC
et Bd est ad mediam pro (seu vac) est ad mediam
BC
seu BA erit ad
proportionalem inter Cd (a- c) et Bd + BC (a +C)