Finding the Third Proportional to 4,393,540 and 9,461,216

Step by Step Solution

1. Step 1: Write the proportion equation
   4,393,540 : 9,461,216 = 9,461,216 : x
2. Step 2: Convert to fraction form
   4,393,540/9,461,216 = 9,461,216/x
3. Step 3: Cross multiply
   4,393,540x = 9,461,216 × 9,461,216
4. Step 4: Simplify right side
   4,393,540x = 89,514,608,198,656
5. Step 5: Solve for x
   x = 89,514,608,198,656/4,393,540
6. Step 6: Final answer
   x = 20,374,142.08