Finding the Third Proportional to 31,120.50 and 41,928.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,120.50 : 41,928.75 = 41,928.75 : x
2. Step 2: Convert to fraction form
   31,120.50/41,928.75 = 41,928.75/x
3. Step 3: Cross multiply
   31,120.50x = 41,928.75 × 41,928.75
4. Step 4: Simplify right side
   31,120.50x = 1,758,020,076.56
5. Step 5: Solve for x
   x = 1,758,020,076.56/31,120.50
6. Step 6: Final answer
   x = 56,490.74