Finding the Third Proportional to 3,822,408 and 8,400,150

Step by Step Solution

1. Step 1: Write the proportion equation
   3,822,408 : 8,400,150 = 8,400,150 : x
2. Step 2: Convert to fraction form
   3,822,408/8,400,150 = 8,400,150/x
3. Step 3: Cross multiply
   3,822,408x = 8,400,150 × 8,400,150
4. Step 4: Simplify right side
   3,822,408x = 70,562,520,022,500
5. Step 5: Solve for x
   x = 70,562,520,022,500/3,822,408
6. Step 6: Final answer
   x = 18,460,227.17