Finding the Third Proportional to 115,920 and 244,507.50

Step by Step Solution

1. Step 1: Write the proportion equation
   115,920 : 244,507.50 = 244,507.50 : x
2. Step 2: Convert to fraction form
   115,920/244,507.50 = 244,507.50/x
3. Step 3: Cross multiply
   115,920x = 244,507.50 × 244,507.50
4. Step 4: Simplify right side
   115,920x = 59,783,917,556.25
5. Step 5: Solve for x
   x = 59,783,917,556.25/115,920
6. Step 6: Final answer
   x = 515,734.28