Finding the Third Proportional to 3,840,990 and 8,277,450

Step by Step Solution

1. Step 1: Write the proportion equation
   3,840,990 : 8,277,450 = 8,277,450 : x
2. Step 2: Convert to fraction form
   3,840,990/8,277,450 = 8,277,450/x
3. Step 3: Cross multiply
   3,840,990x = 8,277,450 × 8,277,450
4. Step 4: Simplify right side
   3,840,990x = 68,516,178,502,500
5. Step 5: Solve for x
   x = 68,516,178,502,500/3,840,990
6. Step 6: Final answer
   x = 17,838,155.92