Finding the Third Proportional to 3,839,388 and 8,401,944

Step by Step Solution

1. Step 1: Write the proportion equation
   3,839,388 : 8,401,944 = 8,401,944 : x
2. Step 2: Convert to fraction form
   3,839,388/8,401,944 = 8,401,944/x
3. Step 3: Cross multiply
   3,839,388x = 8,401,944 × 8,401,944
4. Step 4: Simplify right side
   3,839,388x = 70,592,662,979,136
5. Step 5: Solve for x
   x = 70,592,662,979,136/3,839,388
6. Step 6: Final answer
   x = 18,386,436.32