Question

The mean proportion of 49, 36

Answer 1

Mean proportion=a:b::b:c
A=49
C=36
LET B ne=x

THEN as we know
a:b::b:c
=b×b=a×c

So now A/Q

x×x=49×36
x²=1764
x=√1764
x=42

So mean proportion=42

THANKS

Answer 2

mean proportion of 49,36 is 42

49/x=x/36

x × x =49×36
x^2= 1764
x=√1764
x=42