Finding the Third Proportional to 3,790,214 and 8,218,786

Step by Step Solution

1. Step 1: Write the proportion equation
   3,790,214 : 8,218,786 = 8,218,786 : x
2. Step 2: Convert to fraction form
   3,790,214/8,218,786 = 8,218,786/x
3. Step 3: Cross multiply
   3,790,214x = 8,218,786 × 8,218,786
4. Step 4: Simplify right side
   3,790,214x = 67,548,443,313,796
5. Step 5: Solve for x
   x = 67,548,443,313,796/3,790,214
6. Step 6: Final answer
   x = 17,821,801.97