Finding the Third Proportional to 131,187 and 287,592

Step by Step Solution

1. Step 1: Write the proportion equation
   131,187 : 287,592 = 287,592 : x
2. Step 2: Convert to fraction form
   131,187/287,592 = 287,592/x
3. Step 3: Cross multiply
   131,187x = 287,592 × 287,592
4. Step 4: Simplify right side
   131,187x = 82,709,158,464
5. Step 5: Solve for x
   x = 82,709,158,464/131,187
6. Step 6: Final answer
   x = 630,467.64