Finding the Third Proportional to 3,857,834 and 8,247,136

Step by Step Solution

1. Step 1: Write the proportion equation
   3,857,834 : 8,247,136 = 8,247,136 : x
2. Step 2: Convert to fraction form
   3,857,834/8,247,136 = 8,247,136/x
3. Step 3: Cross multiply
   3,857,834x = 8,247,136 × 8,247,136
4. Step 4: Simplify right side
   3,857,834x = 68,015,252,202,496
5. Step 5: Solve for x
   x = 68,015,252,202,496/3,857,834
6. Step 6: Final answer
   x = 17,630,424.79