Finding the Third Proportional to 31,207.50 and 50,703.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,207.50 : 50,703.75 = 50,703.75 : x
2. Step 2: Convert to fraction form
   31,207.50/50,703.75 = 50,703.75/x
3. Step 3: Cross multiply
   31,207.50x = 50,703.75 × 50,703.75
4. Step 4: Simplify right side
   31,207.50x = 2,570,870,264.06
5. Step 5: Solve for x
   x = 2,570,870,264.06/31,207.50
6. Step 6: Final answer
   x = 82,379.89