Finding the Third Proportional to 3,215,424 and 7,078,544

Step by Step Solution

1. Step 1: Write the proportion equation
   3,215,424 : 7,078,544 = 7,078,544 : x
2. Step 2: Convert to fraction form
   3,215,424/7,078,544 = 7,078,544/x
3. Step 3: Cross multiply
   3,215,424x = 7,078,544 × 7,078,544
4. Step 4: Simplify right side
   3,215,424x = 50,105,785,159,936
5. Step 5: Solve for x
   x = 50,105,785,159,936/3,215,424
6. Step 6: Final answer
   x = 15,582,948.05