Finding the Third Proportional to 4,227,642 and 9,053,155

Step by Step Solution

1. Step 1: Write the proportion equation
   4,227,642 : 9,053,155 = 9,053,155 : x
2. Step 2: Convert to fraction form
   4,227,642/9,053,155 = 9,053,155/x
3. Step 3: Cross multiply
   4,227,642x = 9,053,155 × 9,053,155
4. Step 4: Simplify right side
   4,227,642x = 81,959,615,454,025
5. Step 5: Solve for x
   x = 81,959,615,454,025/4,227,642
6. Step 6: Final answer
   x = 19,386,602.62