Finding the Third Proportional to 3,947,806 and 8,205,752

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947,806 : 8,205,752 = 8,205,752 : x
2. Step 2: Convert to fraction form
   3,947,806/8,205,752 = 8,205,752/x
3. Step 3: Cross multiply
   3,947,806x = 8,205,752 × 8,205,752
4. Step 4: Simplify right side
   3,947,806x = 67,334,365,885,504
5. Step 5: Solve for x
   x = 67,334,365,885,504/3,947,806
6. Step 6: Final answer
   x = 17,056,148.63