Finding the Third Proportional to 20,124.50 and 31,912.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,124.50 : 31,912.50 = 31,912.50 : x
2. Step 2: Convert to fraction form
   20,124.50/31,912.50 = 31,912.50/x
3. Step 3: Cross multiply
   20,124.50x = 31,912.50 × 31,912.50
4. Step 4: Simplify right side
   20,124.50x = 1,018,407,656.25
5. Step 5: Solve for x
   x = 1,018,407,656.25/20,124.50
6. Step 6: Final answer
   x = 50,605.36