Finding the Third Proportional to 3,947,792 and 8,483,008

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947,792 : 8,483,008 = 8,483,008 : x
2. Step 2: Convert to fraction form
   3,947,792/8,483,008 = 8,483,008/x
3. Step 3: Cross multiply
   3,947,792x = 8,483,008 × 8,483,008
4. Step 4: Simplify right side
   3,947,792x = 71,961,424,728,064
5. Step 5: Solve for x
   x = 71,961,424,728,064/3,947,792
6. Step 6: Final answer
   x = 18,228,271.58