Finding the Third Proportional to 4,224,993 and 9,123,493

Step by Step Solution

1. Step 1: Write the proportion equation
   4,224,993 : 9,123,493 = 9,123,493 : x
2. Step 2: Convert to fraction form
   4,224,993/9,123,493 = 9,123,493/x
3. Step 3: Cross multiply
   4,224,993x = 9,123,493 × 9,123,493
4. Step 4: Simplify right side
   4,224,993x = 83,238,124,521,049
5. Step 5: Solve for x
   x = 83,238,124,521,049/4,224,993
6. Step 6: Final answer
   x = 19,701,363.89