Finding the Third Proportional to 3,954,753 and 8,505,666

Step by Step Solution

1. Step 1: Write the proportion equation
   3,954,753 : 8,505,666 = 8,505,666 : x
2. Step 2: Convert to fraction form
   3,954,753/8,505,666 = 8,505,666/x
3. Step 3: Cross multiply
   3,954,753x = 8,505,666 × 8,505,666
4. Step 4: Simplify right side
   3,954,753x = 72,346,354,103,556
5. Step 5: Solve for x
   x = 72,346,354,103,556/3,954,753
6. Step 6: Final answer
   x = 18,293,520.25