Finding the Third Proportional to 335,691 and 730,408.50

Step by Step Solution

1. Step 1: Write the proportion equation
   335,691 : 730,408.50 = 730,408.50 : x
2. Step 2: Convert to fraction form
   335,691/730,408.50 = 730,408.50/x
3. Step 3: Cross multiply
   335,691x = 730,408.50 × 730,408.50
4. Step 4: Simplify right side
   335,691x = 533,496,576,872.25
5. Step 5: Solve for x
   x = 533,496,576,872.25/335,691
6. Step 6: Final answer
   x = 1,589,248.97