Finding the Third Proportional to 131,308.50 and 288,147

Step by Step Solution

1. Step 1: Write the proportion equation
   131,308.50 : 288,147 = 288,147 : x
2. Step 2: Convert to fraction form
   131,308.50/288,147 = 288,147/x
3. Step 3: Cross multiply
   131,308.50x = 288,147 × 288,147
4. Step 4: Simplify right side
   131,308.50x = 83,028,693,609
5. Step 5: Solve for x
   x = 83,028,693,609/131,308.50
6. Step 6: Final answer
   x = 632,317.74