Finding the Third Proportional to 131,262 and 287,948

Step by Step Solution

1. Step 1: Write the proportion equation
   131,262 : 287,948 = 287,948 : x
2. Step 2: Convert to fraction form
   131,262/287,948 = 287,948/x
3. Step 3: Cross multiply
   131,262x = 287,948 × 287,948
4. Step 4: Simplify right side
   131,262x = 82,914,050,704
5. Step 5: Solve for x
   x = 82,914,050,704/131,262
6. Step 6: Final answer
   x = 631,668.35