Finding the Third Proportional to 3,857,820 and 8,247,108

Step by Step Solution

1. Step 1: Write the proportion equation
   3,857,820 : 8,247,108 = 8,247,108 : x
2. Step 2: Convert to fraction form
   3,857,820/8,247,108 = 8,247,108/x
3. Step 3: Cross multiply
   3,857,820x = 8,247,108 × 8,247,108
4. Step 4: Simplify right side
   3,857,820x = 68,014,790,363,664
5. Step 5: Solve for x
   x = 68,014,790,363,664/3,857,820
6. Step 6: Final answer
   x = 17,630,369.06