Finding the Third Proportional to 113,935.50 and 124,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,935.50 : 124,870.50 = 124,870.50 : x
2. Step 2: Convert to fraction form
   113,935.50/124,870.50 = 124,870.50/x
3. Step 3: Cross multiply
   113,935.50x = 124,870.50 × 124,870.50
4. Step 4: Simplify right side
   113,935.50x = 15,592,641,770.25
5. Step 5: Solve for x
   x = 15,592,641,770.25/113,935.50
6. Step 6: Final answer
   x = 136,854.99