Finding the Third Proportional to 3,865,104 and 8,197,920

Step by Step Solution

1. Step 1: Write the proportion equation
   3,865,104 : 8,197,920 = 8,197,920 : x
2. Step 2: Convert to fraction form
   3,865,104/8,197,920 = 8,197,920/x
3. Step 3: Cross multiply
   3,865,104x = 8,197,920 × 8,197,920
4. Step 4: Simplify right side
   3,865,104x = 67,205,892,326,400
5. Step 5: Solve for x
   x = 67,205,892,326,400/3,865,104
6. Step 6: Final answer
   x = 17,387,861.32