Question

if a:b:c then is called the mean proportion between a and c​

Answer 1

Answer:

The middle term is called the mean proportional between the first the third terms. i.e. in a : b = b : c; b is the mean proportional between a and c. ... Thus, 6, 12, 24 are in continued proportion. The second quantity 12 is the mean proportional and third quantity 24 is the third proportional.