Finding the Third Proportional to 20,167.31 and 30,215.53

Step by Step Solution

1. Step 1: Write the proportion equation
   20,167.31 : 30,215.53 = 30,215.53 : x
2. Step 2: Convert to fraction form
   20,167.31/30,215.53 = 30,215.53/x
3. Step 3: Cross multiply
   20,167.31x = 30,215.53 × 30,215.53
4. Step 4: Simplify right side
   20,167.31x = 912,978,328.72
5. Step 5: Solve for x
   x = 912,978,328.72/20,167.31
6. Step 6: Final answer
   x = 45,270.20