Finding the Third Proportional to 131,281.50 and 288,091.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,281.50 : 288,091.50 = 288,091.50 : x
2. Step 2: Convert to fraction form
   131,281.50/288,091.50 = 288,091.50/x
3. Step 3: Cross multiply
   131,281.50x = 288,091.50 × 288,091.50
4. Step 4: Simplify right side
   131,281.50x = 82,996,712,372.25
5. Step 5: Solve for x
   x = 82,996,712,372.25/131,281.50
6. Step 6: Final answer
   x = 632,204.17