Finding the Third Proportional to 3,987,242 and 8,496,436

Step by Step Solution

1. Step 1: Write the proportion equation
   3,987,242 : 8,496,436 = 8,496,436 : x
2. Step 2: Convert to fraction form
   3,987,242/8,496,436 = 8,496,436/x
3. Step 3: Cross multiply
   3,987,242x = 8,496,436 × 8,496,436
4. Step 4: Simplify right side
   3,987,242x = 72,189,424,702,096
5. Step 5: Solve for x
   x = 72,189,424,702,096/3,987,242
6. Step 6: Final answer
   x = 18,105,102.40