Finding the Third Proportional to 51,839.50 and 74,928.50

Step by Step Solution

1. Step 1: Write the proportion equation
   51,839.50 : 74,928.50 = 74,928.50 : x
2. Step 2: Convert to fraction form
   51,839.50/74,928.50 = 74,928.50/x
3. Step 3: Cross multiply
   51,839.50x = 74,928.50 × 74,928.50
4. Step 4: Simplify right side
   51,839.50x = 5,614,280,112.25
5. Step 5: Solve for x
   x = 5,614,280,112.25/51,839.50
6. Step 6: Final answer
   x = 108,301.20