Finding the Third Proportional to 59,141 and 128,230

Step by Step Solution

1. Step 1: Write the proportion equation
   59,141 : 128,230 = 128,230 : x
2. Step 2: Convert to fraction form
   59,141/128,230 = 128,230/x
3. Step 3: Cross multiply
   59,141x = 128,230 × 128,230
4. Step 4: Simplify right side
   59,141x = 16,442,932,900
5. Step 5: Solve for x
   x = 16,442,932,900/59,141
6. Step 6: Final answer
   x = 278,029.33