Finding the Third Proportional to 88,132.50 and 131,809.50

Step by Step Solution

1. Step 1: Write the proportion equation
   88,132.50 : 131,809.50 = 131,809.50 : x
2. Step 2: Convert to fraction form
   88,132.50/131,809.50 = 131,809.50/x
3. Step 3: Cross multiply
   88,132.50x = 131,809.50 × 131,809.50
4. Step 4: Simplify right side
   88,132.50x = 17,373,744,290.25
5. Step 5: Solve for x
   x = 17,373,744,290.25/88,132.50
6. Step 6: Final answer
   x = 197,132.09