Finding the Third Proportional to 131,454 and 287,784

Step by Step Solution

1. Step 1: Write the proportion equation
   131,454 : 287,784 = 287,784 : x
2. Step 2: Convert to fraction form
   131,454/287,784 = 287,784/x
3. Step 3: Cross multiply
   131,454x = 287,784 × 287,784
4. Step 4: Simplify right side
   131,454x = 82,819,630,656
5. Step 5: Solve for x
   x = 82,819,630,656/131,454
6. Step 6: Final answer
   x = 630,027.47