Finding the Third Proportional to 4,320,488 and 9,454,672

Step by Step Solution

1. Step 1: Write the proportion equation
   4,320,488 : 9,454,672 = 9,454,672 : x
2. Step 2: Convert to fraction form
   4,320,488/9,454,672 = 9,454,672/x
3. Step 3: Cross multiply
   4,320,488x = 9,454,672 × 9,454,672
4. Step 4: Simplify right side
   4,320,488x = 89,390,822,627,584
5. Step 5: Solve for x
   x = 89,390,822,627,584/4,320,488
6. Step 6: Final answer
   x = 20,689,982.85