Finding the Third Proportional to 325,388.81 and 675,379.69

Step by Step Solution

1. Step 1: Write the proportion equation
   325,388.81 : 675,379.69 = 675,379.69 : x
2. Step 2: Convert to fraction form
   325,388.81/675,379.69 = 675,379.69/x
3. Step 3: Cross multiply
   325,388.81x = 675,379.69 × 675,379.69
4. Step 4: Simplify right side
   325,388.81x = 456,137,722,287.60
5. Step 5: Solve for x
   x = 456,137,722,287.60/325,388.81
6. Step 6: Final answer
   x = 1,401,823.62