Finding the Third Proportional to 131,928.75 and 311,123.25

Step by Step Solution

1. Step 1: Write the proportion equation
   131,928.75 : 311,123.25 = 311,123.25 : x
2. Step 2: Convert to fraction form
   131,928.75/311,123.25 = 311,123.25/x
3. Step 3: Cross multiply
   131,928.75x = 311,123.25 × 311,123.25
4. Step 4: Simplify right side
   131,928.75x = 96,797,676,690.56
5. Step 5: Solve for x
   x = 96,797,676,690.56/131,928.75
6. Step 6: Final answer
   x = 733,711.77