Finding the Third Proportional to 59,414.50 and 129,075.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,414.50 : 129,075.50 = 129,075.50 : x
2. Step 2: Convert to fraction form
   59,414.50/129,075.50 = 129,075.50/x
3. Step 3: Cross multiply
   59,414.50x = 129,075.50 × 129,075.50
4. Step 4: Simplify right side
   59,414.50x = 16,660,484,700.25
5. Step 5: Solve for x
   x = 16,660,484,700.25/59,414.50
6. Step 6: Final answer
   x = 280,411.09