Finding the Third Proportional to 59,542,959.38 and 128,980,116

Step by Step Solution

1. Step 1: Write the proportion equation
   59,542,959.38 : 128,980,116 = 128,980,116 : x
2. Step 2: Convert to fraction form
   59,542,959.38/128,980,116 = 128,980,116/x
3. Step 3: Cross multiply
   59,542,959.38x = 128,980,116 × 128,980,116
4. Step 4: Simplify right side
   59,542,959.38x = 16,635,870,323,373,456
5. Step 5: Solve for x
   x = 16,635,870,323,373,456/59,542,959.38
6. Step 6: Final answer
   x = 279,392,735.90