Finding the Third Proportional to 485,443.50 and 753,723

Step by Step Solution

1. Step 1: Write the proportion equation
   485,443.50 : 753,723 = 753,723 : x
2. Step 2: Convert to fraction form
   485,443.50/753,723 = 753,723/x
3. Step 3: Cross multiply
   485,443.50x = 753,723 × 753,723
4. Step 4: Simplify right side
   485,443.50x = 568,098,360,729
5. Step 5: Solve for x
   x = 568,098,360,729/485,443.50
6. Step 6: Final answer
   x = 1,170,266.70