Finding the Third Proportional to 51,072,992 and 71,665,518

Step by Step Solution

1. Step 1: Write the proportion equation
   51,072,992 : 71,665,518 = 71,665,518 : x
2. Step 2: Convert to fraction form
   51,072,992/71,665,518 = 71,665,518/x
3. Step 3: Cross multiply
   51,072,992x = 71,665,518 × 71,665,518
4. Step 4: Simplify right side
   51,072,992x = 5,135,946,470,208,324
5. Step 5: Solve for x
   x = 5,135,946,470,208,324/51,072,992
6. Step 6: Final answer
   x = 100,560,908.40