Finding the Third Proportional to 59,608 and 128,895

Step by Step Solution

1. Step 1: Write the proportion equation
   59,608 : 128,895 = 128,895 : x
2. Step 2: Convert to fraction form
   59,608/128,895 = 128,895/x
3. Step 3: Cross multiply
   59,608x = 128,895 × 128,895
4. Step 4: Simplify right side
   59,608x = 16,613,921,025
5. Step 5: Solve for x
   x = 16,613,921,025/59,608
6. Step 6: Final answer
   x = 278,719.65