Finding the Third Proportional to 20,892.75 and 31,516.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,892.75 : 31,516.50 = 31,516.50 : x
2. Step 2: Convert to fraction form
   20,892.75/31,516.50 = 31,516.50/x
3. Step 3: Cross multiply
   20,892.75x = 31,516.50 × 31,516.50
4. Step 4: Simplify right side
   20,892.75x = 993,289,772.25
5. Step 5: Solve for x
   x = 993,289,772.25/20,892.75
6. Step 6: Final answer
   x = 47,542.32