Finding the Third Proportional to 3,947,460 and 8,205,192

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947,460 : 8,205,192 = 8,205,192 : x
2. Step 2: Convert to fraction form
   3,947,460/8,205,192 = 8,205,192/x
3. Step 3: Cross multiply
   3,947,460x = 8,205,192 × 8,205,192
4. Step 4: Simplify right side
   3,947,460x = 67,325,175,756,864
5. Step 5: Solve for x
   x = 67,325,175,756,864/3,947,460
6. Step 6: Final answer
   x = 17,055,315.51