Finding the Third Proportional to 3,839,778 and 8,249,382

Step by Step Solution

1. Step 1: Write the proportion equation
   3,839,778 : 8,249,382 = 8,249,382 : x
2. Step 2: Convert to fraction form
   3,839,778/8,249,382 = 8,249,382/x
3. Step 3: Cross multiply
   3,839,778x = 8,249,382 × 8,249,382
4. Step 4: Simplify right side
   3,839,778x = 68,052,303,381,924
5. Step 5: Solve for x
   x = 68,052,303,381,924/3,839,778
6. Step 6: Final answer
   x = 17,722,978.62