Finding the Third Proportional to 59,292 and 128,911.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,292 : 128,911.50 = 128,911.50 : x
2. Step 2: Convert to fraction form
   59,292/128,911.50 = 128,911.50/x
3. Step 3: Cross multiply
   59,292x = 128,911.50 × 128,911.50
4. Step 4: Simplify right side
   59,292x = 16,618,174,832.25
5. Step 5: Solve for x
   x = 16,618,174,832.25/59,292
6. Step 6: Final answer
   x = 280,276.85