Finding the Third Proportional to 325,431 and 675,456

Step by Step Solution

1. Step 1: Write the proportion equation
   325,431 : 675,456 = 675,456 : x
2. Step 2: Convert to fraction form
   325,431/675,456 = 675,456/x
3. Step 3: Cross multiply
   325,431x = 675,456 × 675,456
4. Step 4: Simplify right side
   325,431x = 456,240,807,936
5. Step 5: Solve for x
   x = 456,240,807,936/325,431
6. Step 6: Final answer
   x = 1,401,958.66