Finding the Third Proportional to 20,403.56 and 30,216.38

Step by Step Solution

1. Step 1: Write the proportion equation
   20,403.56 : 30,216.38 = 30,216.38 : x
2. Step 2: Convert to fraction form
   20,403.56/30,216.38 = 30,216.38/x
3. Step 3: Cross multiply
   20,403.56x = 30,216.38 × 30,216.38
4. Step 4: Simplify right side
   20,403.56x = 913,029,318.14
5. Step 5: Solve for x
   x = 913,029,318.14/20,403.56
6. Step 6: Final answer
   x = 44,748.52