Finding the Third Proportional to 59,895,693 and 128,870,172

Step by Step Solution

1. Step 1: Write the proportion equation
   59,895,693 : 128,870,172 = 128,870,172 : x
2. Step 2: Convert to fraction form
   59,895,693/128,870,172 = 128,870,172/x
3. Step 3: Cross multiply
   59,895,693x = 128,870,172 × 128,870,172
4. Step 4: Simplify right side
   59,895,693x = 16,607,521,231,309,584
5. Step 5: Solve for x
   x = 16,607,521,231,309,584/59,895,693
6. Step 6: Final answer
   x = 277,274,047.59