Finding the Third Proportional to 3,857,837 and 8,247,142

Step by Step Solution

1. Step 1: Write the proportion equation
   3,857,837 : 8,247,142 = 8,247,142 : x
2. Step 2: Convert to fraction form
   3,857,837/8,247,142 = 8,247,142/x
3. Step 3: Cross multiply
   3,857,837x = 8,247,142 × 8,247,142
4. Step 4: Simplify right side
   3,857,837x = 68,015,351,168,164
5. Step 5: Solve for x
   x = 68,015,351,168,164/3,857,837
6. Step 6: Final answer
   x = 17,630,436.74