Finding the Third Proportional to 131,484 and 287,982

Step by Step Solution

1. Step 1: Write the proportion equation
   131,484 : 287,982 = 287,982 : x
2. Step 2: Convert to fraction form
   131,484/287,982 = 287,982/x
3. Step 3: Cross multiply
   131,484x = 287,982 × 287,982
4. Step 4: Simplify right side
   131,484x = 82,933,632,324
5. Step 5: Solve for x
   x = 82,933,632,324/131,484
6. Step 6: Final answer
   x = 630,750.76