Finding the Third Proportional to 3,786,668 and 8,267,220

Step by Step Solution

1. Step 1: Write the proportion equation
   3,786,668 : 8,267,220 = 8,267,220 : x
2. Step 2: Convert to fraction form
   3,786,668/8,267,220 = 8,267,220/x
3. Step 3: Cross multiply
   3,786,668x = 8,267,220 × 8,267,220
4. Step 4: Simplify right side
   3,786,668x = 68,346,926,528,400
5. Step 5: Solve for x
   x = 68,346,926,528,400/3,786,668
6. Step 6: Final answer
   x = 18,049,358.04