Finding the Third Proportional to 13,190.25 and 31,521.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,190.25 : 31,521.75 = 31,521.75 : x
2. Step 2: Convert to fraction form
   13,190.25/31,521.75 = 31,521.75/x
3. Step 3: Cross multiply
   13,190.25x = 31,521.75 × 31,521.75
4. Step 4: Simplify right side
   13,190.25x = 993,620,723.06
5. Step 5: Solve for x
   x = 993,620,723.06/13,190.25
6. Step 6: Final answer
   x = 75,329.94