Finding the Third Proportional to 4,498,821 and 9,662,490

Step by Step Solution

1. Step 1: Write the proportion equation
   4,498,821 : 9,662,490 = 9,662,490 : x
2. Step 2: Convert to fraction form
   4,498,821/9,662,490 = 9,662,490/x
3. Step 3: Cross multiply
   4,498,821x = 9,662,490 × 9,662,490
4. Step 4: Simplify right side
   4,498,821x = 93,363,713,000,100
5. Step 5: Solve for x
   x = 93,363,713,000,100/4,498,821
6. Step 6: Final answer
   x = 20,752,929.05