Finding the Third Proportional to 122,485.50 and 158,456.25

Step by Step Solution

1. Step 1: Write the proportion equation
   122,485.50 : 158,456.25 = 158,456.25 : x
2. Step 2: Convert to fraction form
   122,485.50/158,456.25 = 158,456.25/x
3. Step 3: Cross multiply
   122,485.50x = 158,456.25 × 158,456.25
4. Step 4: Simplify right side
   122,485.50x = 25,108,383,164.06
5. Step 5: Solve for x
   x = 25,108,383,164.06/122,485.50
6. Step 6: Final answer
   x = 204,990.66