Finding the Third Proportional to 3,939,544 and 8,467,544

Step by Step Solution

1. Step 1: Write the proportion equation
   3,939,544 : 8,467,544 = 8,467,544 : x
2. Step 2: Convert to fraction form
   3,939,544/8,467,544 = 8,467,544/x
3. Step 3: Cross multiply
   3,939,544x = 8,467,544 × 8,467,544
4. Step 4: Simplify right side
   3,939,544x = 71,699,301,391,936
5. Step 5: Solve for x
   x = 71,699,301,391,936/3,939,544
6. Step 6: Final answer
   x = 18,199,898.62