Finding the Third Proportional to 31,003,355 and 72,414,824

Step by Step Solution

1. Step 1: Write the proportion equation
   31,003,355 : 72,414,824 = 72,414,824 : x
2. Step 2: Convert to fraction form
   31,003,355/72,414,824 = 72,414,824/x
3. Step 3: Cross multiply
   31,003,355x = 72,414,824 × 72,414,824
4. Step 4: Simplify right side
   31,003,355x = 5,243,906,734,950,976
5. Step 5: Solve for x
   x = 5,243,906,734,950,976/31,003,355
6. Step 6: Final answer
   x = 169,139,976.46