The sum of two numbers is
.
Let
and
be two positive numbers such that
.
.
Find the product function.
\The product of two numbers is
.
Substitute
in
.

.
Differentiate on each side with respect to
.

.
Find the critical numbers by equating derivative to zero.
\

.
Substitute
in
.
.

is maximum when
.
Therefore, the two numbers are
,
.
The two numbers are
,
.