Finding the Third Proportional to 3,790,208 and 8,218,774

Step by Step Solution

1. Step 1: Write the proportion equation
   3,790,208 : 8,218,774 = 8,218,774 : x
2. Step 2: Convert to fraction form
   3,790,208/8,218,774 = 8,218,774/x
3. Step 3: Cross multiply
   3,790,208x = 8,218,774 × 8,218,774
4. Step 4: Simplify right side
   3,790,208x = 67,548,246,063,076
5. Step 5: Solve for x
   x = 67,548,246,063,076/3,790,208
6. Step 6: Final answer
   x = 17,821,778.14