Finding the Third Proportional to 4,320,490 and 9,454,676

Step by Step Solution

1. Step 1: Write the proportion equation
   4,320,490 : 9,454,676 = 9,454,676 : x
2. Step 2: Convert to fraction form
   4,320,490/9,454,676 = 9,454,676/x
3. Step 3: Cross multiply
   4,320,490x = 9,454,676 × 9,454,676
4. Step 4: Simplify right side
   4,320,490x = 89,390,898,264,976
5. Step 5: Solve for x
   x = 89,390,898,264,976/4,320,490
6. Step 6: Final answer
   x = 20,689,990.78