Finding the Third Proportional to 4,514,872 and 9,642,048

Step by Step Solution

1. Step 1: Write the proportion equation
   4,514,872 : 9,642,048 = 9,642,048 : x
2. Step 2: Convert to fraction form
   4,514,872/9,642,048 = 9,642,048/x
3. Step 3: Cross multiply
   4,514,872x = 9,642,048 × 9,642,048
4. Step 4: Simplify right side
   4,514,872x = 92,969,089,634,304
5. Step 5: Solve for x
   x = 92,969,089,634,304/4,514,872
6. Step 6: Final answer
   x = 20,591,744.27