Finding the Third Proportional to 3,669,451 and 8,290,214

Step by Step Solution

1. Step 1: Write the proportion equation
   3,669,451 : 8,290,214 = 8,290,214 : x
2. Step 2: Convert to fraction form
   3,669,451/8,290,214 = 8,290,214/x
3. Step 3: Cross multiply
   3,669,451x = 8,290,214 × 8,290,214
4. Step 4: Simplify right side
   3,669,451x = 68,727,648,165,796
5. Step 5: Solve for x
   x = 68,727,648,165,796/3,669,451
6. Step 6: Final answer
   x = 18,729,681.41