Finding the Third Proportional to 3,863,748 and 8,391,204

Step by Step Solution

1. Step 1: Write the proportion equation
   3,863,748 : 8,391,204 = 8,391,204 : x
2. Step 2: Convert to fraction form
   3,863,748/8,391,204 = 8,391,204/x
3. Step 3: Cross multiply
   3,863,748x = 8,391,204 × 8,391,204
4. Step 4: Simplify right side
   3,863,748x = 70,412,304,569,616
5. Step 5: Solve for x
   x = 70,412,304,569,616/3,863,748
6. Step 6: Final answer
   x = 18,223,834.62