Finding the Third Proportional to 3,839,238 and 8,401,644

Step by Step Solution

1. Step 1: Write the proportion equation
   3,839,238 : 8,401,644 = 8,401,644 : x
2. Step 2: Convert to fraction form
   3,839,238/8,401,644 = 8,401,644/x
3. Step 3: Cross multiply
   3,839,238x = 8,401,644 × 8,401,644
4. Step 4: Simplify right side
   3,839,238x = 70,587,621,902,736
5. Step 5: Solve for x
   x = 70,587,621,902,736/3,839,238
6. Step 6: Final answer
   x = 18,385,841.64