Finding the Third Proportional to 3,845,985 and 8,206,830

Step by Step Solution

1. Step 1: Write the proportion equation
   3,845,985 : 8,206,830 = 8,206,830 : x
2. Step 2: Convert to fraction form
   3,845,985/8,206,830 = 8,206,830/x
3. Step 3: Cross multiply
   3,845,985x = 8,206,830 × 8,206,830
4. Step 4: Simplify right side
   3,845,985x = 67,352,058,648,900
5. Step 5: Solve for x
   x = 67,352,058,648,900/3,845,985
6. Step 6: Final answer
   x = 17,512,304.04