Finding the Third Proportional to 3,939,194 and 8,568,568

Step by Step Solution

1. Step 1: Write the proportion equation
   3,939,194 : 8,568,568 = 8,568,568 : x
2. Step 2: Convert to fraction form
   3,939,194/8,568,568 = 8,568,568/x
3. Step 3: Cross multiply
   3,939,194x = 8,568,568 × 8,568,568
4. Step 4: Simplify right side
   3,939,194x = 73,420,357,570,624
5. Step 5: Solve for x
   x = 73,420,357,570,624/3,939,194
6. Step 6: Final answer
   x = 18,638,421.35