Finding the Third Proportional to 3,880,739 and 8,163,630

Step by Step Solution

1. Step 1: Write the proportion equation
   3,880,739 : 8,163,630 = 8,163,630 : x
2. Step 2: Convert to fraction form
   3,880,739/8,163,630 = 8,163,630/x
3. Step 3: Cross multiply
   3,880,739x = 8,163,630 × 8,163,630
4. Step 4: Simplify right side
   3,880,739x = 66,644,854,776,900
5. Step 5: Solve for x
   x = 66,644,854,776,900/3,880,739
6. Step 6: Final answer
   x = 17,173,238.08