Finding the Third Proportional to 3,802,212 and 8,454,516

Step by Step Solution

1. Step 1: Write the proportion equation
   3,802,212 : 8,454,516 = 8,454,516 : x
2. Step 2: Convert to fraction form
   3,802,212/8,454,516 = 8,454,516/x
3. Step 3: Cross multiply
   3,802,212x = 8,454,516 × 8,454,516
4. Step 4: Simplify right side
   3,802,212x = 71,478,840,794,256
5. Step 5: Solve for x
   x = 71,478,840,794,256/3,802,212
6. Step 6: Final answer
   x = 18,799,278.10