Finding the Third Proportional to 3,907,996 and 8,484,444

Step by Step Solution

1. Step 1: Write the proportion equation
   3,907,996 : 8,484,444 = 8,484,444 : x
2. Step 2: Convert to fraction form
   3,907,996/8,484,444 = 8,484,444/x
3. Step 3: Cross multiply
   3,907,996x = 8,484,444 × 8,484,444
4. Step 4: Simplify right side
   3,907,996x = 71,985,789,989,136
5. Step 5: Solve for x
   x = 71,985,789,989,136/3,907,996
6. Step 6: Final answer
   x = 18,420,128.88