Finding the Third Proportional to 4,320,442 and 9,454,580

Step by Step Solution

1. Step 1: Write the proportion equation
   4,320,442 : 9,454,580 = 9,454,580 : x
2. Step 2: Convert to fraction form
   4,320,442/9,454,580 = 9,454,580/x
3. Step 3: Cross multiply
   4,320,442x = 9,454,580 × 9,454,580
4. Step 4: Simplify right side
   4,320,442x = 89,389,082,976,400
5. Step 5: Solve for x
   x = 89,389,082,976,400/4,320,442
6. Step 6: Final answer
   x = 20,689,800.48