Finding the Third Proportional to 20,431,078 and 30,469,442

Step by Step Solution

1. Step 1: Write the proportion equation
   20,431,078 : 30,469,442 = 30,469,442 : x
2. Step 2: Convert to fraction form
   20,431,078/30,469,442 = 30,469,442/x
3. Step 3: Cross multiply
   20,431,078x = 30,469,442 × 30,469,442
4. Step 4: Simplify right side
   20,431,078x = 928,386,895,791,364
5. Step 5: Solve for x
   x = 928,386,895,791,364/20,431,078
6. Step 6: Final answer
   x = 45,439,936.93