Finding the Third Proportional to 131,940 and 311,152.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,940 : 311,152.50 = 311,152.50 : x
2. Step 2: Convert to fraction form
   131,940/311,152.50 = 311,152.50/x
3. Step 3: Cross multiply
   131,940x = 311,152.50 × 311,152.50
4. Step 4: Simplify right side
   131,940x = 96,815,878,256.25
5. Step 5: Solve for x
   x = 96,815,878,256.25/131,940
6. Step 6: Final answer
   x = 733,787.16