Finding the Third Proportional to 131,715 and 203,755.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,715 : 203,755.50 = 203,755.50 : x
2. Step 2: Convert to fraction form
   131,715/203,755.50 = 203,755.50/x
3. Step 3: Cross multiply
   131,715x = 203,755.50 × 203,755.50
4. Step 4: Simplify right side
   131,715x = 41,516,303,780.25
5. Step 5: Solve for x
   x = 41,516,303,780.25/131,715
6. Step 6: Final answer
   x = 315,197.99