Finding the Third Proportional to 2,624,866 and 3,990,390

Step by Step Solution

1. Step 1: Write the proportion equation
   2,624,866 : 3,990,390 = 3,990,390 : x
2. Step 2: Convert to fraction form
   2,624,866/3,990,390 = 3,990,390/x
3. Step 3: Cross multiply
   2,624,866x = 3,990,390 × 3,990,390
4. Step 4: Simplify right side
   2,624,866x = 15,923,212,352,100
5. Step 5: Solve for x
   x = 15,923,212,352,100/2,624,866
6. Step 6: Final answer
   x = 6,066,295.33