Finding the Third Proportional to 131,599.69 and 285,069.38

Step by Step Solution

1. Step 1: Write the proportion equation
   131,599.69 : 285,069.38 = 285,069.38 : x
2. Step 2: Convert to fraction form
   131,599.69/285,069.38 = 285,069.38/x
3. Step 3: Cross multiply
   131,599.69x = 285,069.38 × 285,069.38
4. Step 4: Simplify right side
   131,599.69x = 81,264,548,562.89
5. Step 5: Solve for x
   x = 81,264,548,562.89/131,599.69
6. Step 6: Final answer
   x = 617,513.23