Finding the Third Proportional to 321,104.25 and 705,768

Step by Step Solution

1. Step 1: Write the proportion equation
   321,104.25 : 705,768 = 705,768 : x
2. Step 2: Convert to fraction form
   321,104.25/705,768 = 705,768/x
3. Step 3: Cross multiply
   321,104.25x = 705,768 × 705,768
4. Step 4: Simplify right side
   321,104.25x = 498,108,469,824
5. Step 5: Solve for x
   x = 498,108,469,824/321,104.25
6. Step 6: Final answer
   x = 1,551,235.99