Finding the Third Proportional to 3,790,212 and 8,218,782

Step by Step Solution

1. Step 1: Write the proportion equation
   3,790,212 : 8,218,782 = 8,218,782 : x
2. Step 2: Convert to fraction form
   3,790,212/8,218,782 = 8,218,782/x
3. Step 3: Cross multiply
   3,790,212x = 8,218,782 × 8,218,782
4. Step 4: Simplify right side
   3,790,212x = 67,548,377,563,524
5. Step 5: Solve for x
   x = 67,548,377,563,524/3,790,212
6. Step 6: Final answer
   x = 17,821,794.02