Finding the Third Proportional to 3,527,778 and 7,479,456

Step by Step Solution

1. Step 1: Write the proportion equation
   3,527,778 : 7,479,456 = 7,479,456 : x
2. Step 2: Convert to fraction form
   3,527,778/7,479,456 = 7,479,456/x
3. Step 3: Cross multiply
   3,527,778x = 7,479,456 × 7,479,456
4. Step 4: Simplify right side
   3,527,778x = 55,942,262,055,936
5. Step 5: Solve for x
   x = 55,942,262,055,936/3,527,778
6. Step 6: Final answer
   x = 15,857,648.09