Finding the Third Proportional to 20,357.25 and 31,517.63

Step by Step Solution

1. Step 1: Write the proportion equation
   20,357.25 : 31,517.63 = 31,517.63 : x
2. Step 2: Convert to fraction form
   20,357.25/31,517.63 = 31,517.63/x
3. Step 3: Cross multiply
   20,357.25x = 31,517.63 × 31,517.63
4. Step 4: Simplify right side
   20,357.25x = 993,360,685.64
5. Step 5: Solve for x
   x = 993,360,685.64/20,357.25
6. Step 6: Final answer
   x = 48,796.41