Finding the Third Proportional to 144,789.75 and 319,050

Step by Step Solution

1. Step 1: Write the proportion equation
   144,789.75 : 319,050 = 319,050 : x
2. Step 2: Convert to fraction form
   144,789.75/319,050 = 319,050/x
3. Step 3: Cross multiply
   144,789.75x = 319,050 × 319,050
4. Step 4: Simplify right side
   144,789.75x = 101,792,902,500
5. Step 5: Solve for x
   x = 101,792,902,500/144,789.75
6. Step 6: Final answer
   x = 703,039.42