Finding the Third Proportional to 51,128,208 and 71,915,238

Step by Step Solution

1. Step 1: Write the proportion equation
   51,128,208 : 71,915,238 = 71,915,238 : x
2. Step 2: Convert to fraction form
   51,128,208/71,915,238 = 71,915,238/x
3. Step 3: Cross multiply
   51,128,208x = 71,915,238 × 71,915,238
4. Step 4: Simplify right side
   51,128,208x = 5,171,801,456,596,644
5. Step 5: Solve for x
   x = 5,171,801,456,596,644/51,128,208
6. Step 6: Final answer
   x = 101,153,583.49