Finding the Third Proportional to 59,707 and 128,738

Step by Step Solution

1. Step 1: Write the proportion equation
   59,707 : 128,738 = 128,738 : x
2. Step 2: Convert to fraction form
   59,707/128,738 = 128,738/x
3. Step 3: Cross multiply
   59,707x = 128,738 × 128,738
4. Step 4: Simplify right side
   59,707x = 16,573,472,644
5. Step 5: Solve for x
   x = 16,573,472,644/59,707
6. Step 6: Final answer
   x = 277,580.06