Finding the Third Proportional to 59,502 and 128,800.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,502 : 128,800.50 = 128,800.50 : x
2. Step 2: Convert to fraction form
   59,502/128,800.50 = 128,800.50/x
3. Step 3: Cross multiply
   59,502x = 128,800.50 × 128,800.50
4. Step 4: Simplify right side
   59,502x = 16,589,568,800.25
5. Step 5: Solve for x
   x = 16,589,568,800.25/59,502
6. Step 6: Final answer
   x = 278,806.91