Finding the Third Proportional to 20,431,108 and 30,469,484

Step by Step Solution

1. Step 1: Write the proportion equation
   20,431,108 : 30,469,484 = 30,469,484 : x
2. Step 2: Convert to fraction form
   20,431,108/30,469,484 = 30,469,484/x
3. Step 3: Cross multiply
   20,431,108x = 30,469,484 × 30,469,484
4. Step 4: Simplify right side
   20,431,108x = 928,389,455,226,256
5. Step 5: Solve for x
   x = 928,389,455,226,256/20,431,108
6. Step 6: Final answer
   x = 45,439,995.48