Finding the Third Proportional to 3,954,748 and 8,505,656

Step by Step Solution

1. Step 1: Write the proportion equation
   3,954,748 : 8,505,656 = 8,505,656 : x
2. Step 2: Convert to fraction form
   3,954,748/8,505,656 = 8,505,656/x
3. Step 3: Cross multiply
   3,954,748x = 8,505,656 × 8,505,656
4. Step 4: Simplify right side
   3,954,748x = 72,346,183,990,336
5. Step 5: Solve for x
   x = 72,346,183,990,336/3,954,748
6. Step 6: Final answer
   x = 18,293,500.37