Finding the Third Proportional to 3,802,220 and 8,454,532

Step by Step Solution

1. Step 1: Write the proportion equation
   3,802,220 : 8,454,532 = 8,454,532 : x
2. Step 2: Convert to fraction form
   3,802,220/8,454,532 = 8,454,532/x
3. Step 3: Cross multiply
   3,802,220x = 8,454,532 × 8,454,532
4. Step 4: Simplify right side
   3,802,220x = 71,479,111,339,024
5. Step 5: Solve for x
   x = 71,479,111,339,024/3,802,220
6. Step 6: Final answer
   x = 18,799,309.70