Finding the Third Proportional to 331,494.19 and 723,708

Step by Step Solution

1. Step 1: Write the proportion equation
   331,494.19 : 723,708 = 723,708 : x
2. Step 2: Convert to fraction form
   331,494.19/723,708 = 723,708/x
3. Step 3: Cross multiply
   331,494.19x = 723,708 × 723,708
4. Step 4: Simplify right side
   331,494.19x = 523,753,269,264
5. Step 5: Solve for x
   x = 523,753,269,264/331,494.19
6. Step 6: Final answer
   x = 1,579,977.23