Finding the Third Proportional to 131,188.50 and 242,664

Step by Step Solution

1. Step 1: Write the proportion equation
   131,188.50 : 242,664 = 242,664 : x
2. Step 2: Convert to fraction form
   131,188.50/242,664 = 242,664/x
3. Step 3: Cross multiply
   131,188.50x = 242,664 × 242,664
4. Step 4: Simplify right side
   131,188.50x = 58,885,816,896
5. Step 5: Solve for x
   x = 58,885,816,896/131,188.50
6. Step 6: Final answer
   x = 448,864.17