Finding the Third Proportional to 3,880,727 and 8,163,620

Step by Step Solution

1. Step 1: Write the proportion equation
   3,880,727 : 8,163,620 = 8,163,620 : x
2. Step 2: Convert to fraction form
   3,880,727/8,163,620 = 8,163,620/x
3. Step 3: Cross multiply
   3,880,727x = 8,163,620 × 8,163,620
4. Step 4: Simplify right side
   3,880,727x = 66,644,691,504,400
5. Step 5: Solve for x
   x = 66,644,691,504,400/3,880,727
6. Step 6: Final answer
   x = 17,173,249.11