Finding the Third Proportional to 51,799.50 and 67,722.75

Step by Step Solution

1. Step 1: Write the proportion equation
   51,799.50 : 67,722.75 = 67,722.75 : x
2. Step 2: Convert to fraction form
   51,799.50/67,722.75 = 67,722.75/x
3. Step 3: Cross multiply
   51,799.50x = 67,722.75 × 67,722.75
4. Step 4: Simplify right side
   51,799.50x = 4,586,370,867.56
5. Step 5: Solve for x
   x = 4,586,370,867.56/51,799.50
6. Step 6: Final answer
   x = 88,540.83