Finding the Third Proportional to 20,036.25 and 31,147.88

Step by Step Solution

1. Step 1: Write the proportion equation
   20,036.25 : 31,147.88 = 31,147.88 : x
2. Step 2: Convert to fraction form
   20,036.25/31,147.88 = 31,147.88/x
3. Step 3: Cross multiply
   20,036.25x = 31,147.88 × 31,147.88
4. Step 4: Simplify right side
   20,036.25x = 970,190,117.02
5. Step 5: Solve for x
   x = 970,190,117.02/20,036.25
6. Step 6: Final answer
   x = 48,421.74