Finding the Third Proportional to 59,059.69 and 129,601.69

Step by Step Solution

1. Step 1: Write the proportion equation
   59,059.69 : 129,601.69 = 129,601.69 : x
2. Step 2: Convert to fraction form
   59,059.69/129,601.69 = 129,601.69/x
3. Step 3: Cross multiply
   59,059.69x = 129,601.69 × 129,601.69
4. Step 4: Simplify right side
   59,059.69x = 16,796,597,402.85
5. Step 5: Solve for x
   x = 16,796,597,402.85/59,059.69
6. Step 6: Final answer
   x = 284,400.38