Finding the Third Proportional to 113,856 and 247,399.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,856 : 247,399.50 = 247,399.50 : x
2. Step 2: Convert to fraction form
   113,856/247,399.50 = 247,399.50/x
3. Step 3: Cross multiply
   113,856x = 247,399.50 × 247,399.50
4. Step 4: Simplify right side
   113,856x = 61,206,512,600.25
5. Step 5: Solve for x
   x = 61,206,512,600.25/113,856
6. Step 6: Final answer
   x = 537,578.28