Finding the Third Proportional to 4,108,540 and 9,161,216

Step by Step Solution

1. Step 1: Write the proportion equation
   4,108,540 : 9,161,216 = 9,161,216 : x
2. Step 2: Convert to fraction form
   4,108,540/9,161,216 = 9,161,216/x
3. Step 3: Cross multiply
   4,108,540x = 9,161,216 × 9,161,216
4. Step 4: Simplify right side
   4,108,540x = 83,927,878,598,656
5. Step 5: Solve for x
   x = 83,927,878,598,656/4,108,540
6. Step 6: Final answer
   x = 20,427,664.96