Finding the Third Proportional to 131,515 and 283,311.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,515 : 283,311.50 = 283,311.50 : x
2. Step 2: Convert to fraction form
   131,515/283,311.50 = 283,311.50/x
3. Step 3: Cross multiply
   131,515x = 283,311.50 × 283,311.50
4. Step 4: Simplify right side
   131,515x = 80,265,406,032.25
5. Step 5: Solve for x
   x = 80,265,406,032.25/131,515
6. Step 6: Final answer
   x = 610,313.70