Finding the Third Proportional to 3,836,128 and 8,394,694

Step by Step Solution

1. Step 1: Write the proportion equation
   3,836,128 : 8,394,694 = 8,394,694 : x
2. Step 2: Convert to fraction form
   3,836,128/8,394,694 = 8,394,694/x
3. Step 3: Cross multiply
   3,836,128x = 8,394,694 × 8,394,694
4. Step 4: Simplify right side
   3,836,128x = 70,470,887,353,636
5. Step 5: Solve for x
   x = 70,470,887,353,636/3,836,128
6. Step 6: Final answer
   x = 18,370,316.98