Finding the Third Proportional to 122,520.75 and 263,814

Step by Step Solution

1. Step 1: Write the proportion equation
   122,520.75 : 263,814 = 263,814 : x
2. Step 2: Convert to fraction form
   122,520.75/263,814 = 263,814/x
3. Step 3: Cross multiply
   122,520.75x = 263,814 × 263,814
4. Step 4: Simplify right side
   122,520.75x = 69,597,826,596
5. Step 5: Solve for x
   x = 69,597,826,596/122,520.75
6. Step 6: Final answer
   x = 568,049.30