Finding the Third Proportional to 4,227,638 and 9,053,147

Step by Step Solution

1. Step 1: Write the proportion equation
   4,227,638 : 9,053,147 = 9,053,147 : x
2. Step 2: Convert to fraction form
   4,227,638/9,053,147 = 9,053,147/x
3. Step 3: Cross multiply
   4,227,638x = 9,053,147 × 9,053,147
4. Step 4: Simplify right side
   4,227,638x = 81,959,470,603,609
5. Step 5: Solve for x
   x = 81,959,470,603,609/4,227,638
6. Step 6: Final answer
   x = 19,386,586.70