Finding the Third Proportional to 131,513 and 287,635.25

Step by Step Solution

1. Step 1: Write the proportion equation
   131,513 : 287,635.25 = 287,635.25 : x
2. Step 2: Convert to fraction form
   131,513/287,635.25 = 287,635.25/x
3. Step 3: Cross multiply
   131,513x = 287,635.25 × 287,635.25
4. Step 4: Simplify right side
   131,513x = 82,734,037,042.56
5. Step 5: Solve for x
   x = 82,734,037,042.56/131,513
6. Step 6: Final answer
   x = 629,093.98