Finding the Third Proportional to 131,699.25 and 288,484.88

Step by Step Solution

1. Step 1: Write the proportion equation
   131,699.25 : 288,484.88 = 288,484.88 : x
2. Step 2: Convert to fraction form
   131,699.25/288,484.88 = 288,484.88/x
3. Step 3: Cross multiply
   131,699.25x = 288,484.88 × 288,484.88
4. Step 4: Simplify right side
   131,699.25x = 83,223,523,103.77
5. Step 5: Solve for x
   x = 83,223,523,103.77/131,699.25
6. Step 6: Final answer
   x = 631,921.01