Finding the Third Proportional to 4,514,866 and 9,642,040

Step by Step Solution

1. Step 1: Write the proportion equation
   4,514,866 : 9,642,040 = 9,642,040 : x
2. Step 2: Convert to fraction form
   4,514,866/9,642,040 = 9,642,040/x
3. Step 3: Cross multiply
   4,514,866x = 9,642,040 × 9,642,040
4. Step 4: Simplify right side
   4,514,866x = 92,968,935,361,600
5. Step 5: Solve for x
   x = 92,968,935,361,600/4,514,866
6. Step 6: Final answer
   x = 20,591,737.46