Finding the Third Proportional to 321,324.50 and 705,693

Step by Step Solution

1. Step 1: Write the proportion equation
   321,324.50 : 705,693 = 705,693 : x
2. Step 2: Convert to fraction form
   321,324.50/705,693 = 705,693/x
3. Step 3: Cross multiply
   321,324.50x = 705,693 × 705,693
4. Step 4: Simplify right side
   321,324.50x = 498,002,610,249
5. Step 5: Solve for x
   x = 498,002,610,249/321,324.50
6. Step 6: Final answer
   x = 1,549,843.26