Finding the Third Proportional to 113,930.50 and 245,391.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,930.50 : 245,391.50 = 245,391.50 : x
2. Step 2: Convert to fraction form
   113,930.50/245,391.50 = 245,391.50/x
3. Step 3: Cross multiply
   113,930.50x = 245,391.50 × 245,391.50
4. Step 4: Simplify right side
   113,930.50x = 60,216,988,272.25
5. Step 5: Solve for x
   x = 60,216,988,272.25/113,930.50
6. Step 6: Final answer
   x = 528,541.42