Finding the Third Proportional to 12,318,660 and 25,417,836

Step by Step Solution

1. Step 1: Write the proportion equation
   12,318,660 : 25,417,836 = 25,417,836 : x
2. Step 2: Convert to fraction form
   12,318,660/25,417,836 = 25,417,836/x
3. Step 3: Cross multiply
   12,318,660x = 25,417,836 × 25,417,836
4. Step 4: Simplify right side
   12,318,660x = 646,066,386,922,896
5. Step 5: Solve for x
   x = 646,066,386,922,896/12,318,660
6. Step 6: Final answer
   x = 52,446,157.86