Finding the Third Proportional to 3,802,321 and 8,454,782

Step by Step Solution

1. Step 1: Write the proportion equation
   3,802,321 : 8,454,782 = 8,454,782 : x
2. Step 2: Convert to fraction form
   3,802,321/8,454,782 = 8,454,782/x
3. Step 3: Cross multiply
   3,802,321x = 8,454,782 × 8,454,782
4. Step 4: Simplify right side
   3,802,321x = 71,483,338,667,524
5. Step 5: Solve for x
   x = 71,483,338,667,524/3,802,321
6. Step 6: Final answer
   x = 18,799,922.12