Finding the Third Proportional to 131,387.06 and 287,514.56

Step by Step Solution

1. Step 1: Write the proportion equation
   131,387.06 : 287,514.56 = 287,514.56 : x
2. Step 2: Convert to fraction form
   131,387.06/287,514.56 = 287,514.56/x
3. Step 3: Cross multiply
   131,387.06x = 287,514.56 × 287,514.56
4. Step 4: Simplify right side
   131,387.06x = 82,664,623,649.57
5. Step 5: Solve for x
   x = 82,664,623,649.57/131,387.06
6. Step 6: Final answer
   x = 629,168.67