Finding the Third Proportional to 131,707 and 288,504

Step by Step Solution

1. Step 1: Write the proportion equation
   131,707 : 288,504 = 288,504 : x
2. Step 2: Convert to fraction form
   131,707/288,504 = 288,504/x
3. Step 3: Cross multiply
   131,707x = 288,504 × 288,504
4. Step 4: Simplify right side
   131,707x = 83,234,558,016
5. Step 5: Solve for x
   x = 83,234,558,016/131,707
6. Step 6: Final answer
   x = 631,967.61