Finding the Third Proportional to 3,939,519 and 8,467,548

Step by Step Solution

1. Step 1: Write the proportion equation
   3,939,519 : 8,467,548 = 8,467,548 : x
2. Step 2: Convert to fraction form
   3,939,519/8,467,548 = 8,467,548/x
3. Step 3: Cross multiply
   3,939,519x = 8,467,548 × 8,467,548
4. Step 4: Simplify right side
   3,939,519x = 71,699,369,132,304
5. Step 5: Solve for x
   x = 71,699,369,132,304/3,939,519
6. Step 6: Final answer
   x = 18,200,031.31