Finding the Third Proportional to 20,457.56 and 31,233.09

Step by Step Solution

1. Step 1: Write the proportion equation
   20,457.56 : 31,233.09 = 31,233.09 : x
2. Step 2: Convert to fraction form
   20,457.56/31,233.09 = 31,233.09/x
3. Step 3: Cross multiply
   20,457.56x = 31,233.09 × 31,233.09
4. Step 4: Simplify right side
   20,457.56x = 975,506,145.20
5. Step 5: Solve for x
   x = 975,506,145.20/20,457.56
6. Step 6: Final answer
   x = 47,684.38