Finding the Third Proportional to 50,540.20 and 79,278.75

Step by Step Solution

1. Step 1: Write the proportion equation
   50,540.20 : 79,278.75 = 79,278.75 : x
2. Step 2: Convert to fraction form
   50,540.20/79,278.75 = 79,278.75/x
3. Step 3: Cross multiply
   50,540.20x = 79,278.75 × 79,278.75
4. Step 4: Simplify right side
   50,540.20x = 6,285,120,201.56
5. Step 5: Solve for x
   x = 6,285,120,201.56/50,540.20
6. Step 6: Final answer
   x = 124,358.82