Finding the Third Proportional to 234,760.78 and 339,121.69

Step by Step Solution

1. Step 1: Write the proportion equation
   234,760.78 : 339,121.69 = 339,121.69 : x
2. Step 2: Convert to fraction form
   234,760.78/339,121.69 = 339,121.69/x
3. Step 3: Cross multiply
   234,760.78x = 339,121.69 × 339,121.69
4. Step 4: Simplify right side
   234,760.78x = 115,003,518,932.85
5. Step 5: Solve for x
   x = 115,003,518,932.85/234,760.78
6. Step 6: Final answer
   x = 489,875.35