Finding the Third Proportional to 30,136.50 and 65,290.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,136.50 : 65,290.50 = 65,290.50 : x
2. Step 2: Convert to fraction form
   30,136.50/65,290.50 = 65,290.50/x
3. Step 3: Cross multiply
   30,136.50x = 65,290.50 × 65,290.50
4. Step 4: Simplify right side
   30,136.50x = 4,262,849,390.25
5. Step 5: Solve for x
   x = 4,262,849,390.25/30,136.50
6. Step 6: Final answer
   x = 141,451.38