Finding the Third Proportional to 131,487 and 288,004

Step by Step Solution

1. Step 1: Write the proportion equation
   131,487 : 288,004 = 288,004 : x
2. Step 2: Convert to fraction form
   131,487/288,004 = 288,004/x
3. Step 3: Cross multiply
   131,487x = 288,004 × 288,004
4. Step 4: Simplify right side
   131,487x = 82,946,304,016
5. Step 5: Solve for x
   x = 82,946,304,016/131,487
6. Step 6: Final answer
   x = 630,832.74