Finding the Third Proportional to 131,472 and 287,958

Step by Step Solution

1. Step 1: Write the proportion equation
   131,472 : 287,958 = 287,958 : x
2. Step 2: Convert to fraction form
   131,472/287,958 = 287,958/x
3. Step 3: Cross multiply
   131,472x = 287,958 × 287,958
4. Step 4: Simplify right side
   131,472x = 82,919,809,764
5. Step 5: Solve for x
   x = 82,919,809,764/131,472
6. Step 6: Final answer
   x = 630,703.19