Answer:
3 and 60
Step-by-step explanation:
A proportion is a mathematical expression in which two ratios are shown to be equal.
Hence
[tex]a/b = c/d \\[/tex] is proportion .
it can be also written as a:b= c:d
The four part a,b,c,d can be divided into two groups
based on above discussion
in proportion 3/15=12/60
3 is in position of a
and
60 is in position of d
Thus, 3 and 60 are extremes in 3/15=12/60 proportion.
