Finding the Third Proportional to 28,621.50 and 62,664

Step by Step Solution

1. Step 1: Write the proportion equation
   28,621.50 : 62,664 = 62,664 : x
2. Step 2: Convert to fraction form
   28,621.50/62,664 = 62,664/x
3. Step 3: Cross multiply
   28,621.50x = 62,664 × 62,664
4. Step 4: Simplify right side
   28,621.50x = 3,926,776,896
5. Step 5: Solve for x
   x = 3,926,776,896/28,621.50
6. Step 6: Final answer
   x = 137,196.75