Finding the Third Proportional to 20,433 and 31,243.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,433 : 31,243.50 = 31,243.50 : x
2. Step 2: Convert to fraction form
   20,433/31,243.50 = 31,243.50/x
3. Step 3: Cross multiply
   20,433x = 31,243.50 × 31,243.50
4. Step 4: Simplify right side
   20,433x = 976,156,292.25
5. Step 5: Solve for x
   x = 976,156,292.25/20,433
6. Step 6: Final answer
   x = 47,773.52