Finding the Third Proportional to 72,661 and 98,623.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,661 : 98,623.50 = 98,623.50 : x
2. Step 2: Convert to fraction form
   72,661/98,623.50 = 98,623.50/x
3. Step 3: Cross multiply
   72,661x = 98,623.50 × 98,623.50
4. Step 4: Simplify right side
   72,661x = 9,726,594,752.25
5. Step 5: Solve for x
   x = 9,726,594,752.25/72,661
6. Step 6: Final answer
   x = 133,862.66