Finding the Third Proportional to 20,544 and 31,740

Step by Step Solution

1. Step 1: Write the proportion equation
   20,544 : 31,740 = 31,740 : x
2. Step 2: Convert to fraction form
   20,544/31,740 = 31,740/x
3. Step 3: Cross multiply
   20,544x = 31,740 × 31,740
4. Step 4: Simplify right side
   20,544x = 1,007,427,600
5. Step 5: Solve for x
   x = 1,007,427,600/20,544
6. Step 6: Final answer
   x = 49,037.56