Finding the Third Proportional to 337,405.50 and 705,780

Step by Step Solution

1. Step 1: Write the proportion equation
   337,405.50 : 705,780 = 705,780 : x
2. Step 2: Convert to fraction form
   337,405.50/705,780 = 705,780/x
3. Step 3: Cross multiply
   337,405.50x = 705,780 × 705,780
4. Step 4: Simplify right side
   337,405.50x = 498,125,408,400
5. Step 5: Solve for x
   x = 498,125,408,400/337,405.50
6. Step 6: Final answer
   x = 1,476,340.51