Finding the Third Proportional to 19,942.50 and 31,287

Step by Step Solution

1. Step 1: Write the proportion equation
   19,942.50 : 31,287 = 31,287 : x
2. Step 2: Convert to fraction form
   19,942.50/31,287 = 31,287/x
3. Step 3: Cross multiply
   19,942.50x = 31,287 × 31,287
4. Step 4: Simplify right side
   19,942.50x = 978,876,369
5. Step 5: Solve for x
   x = 978,876,369/19,942.50
6. Step 6: Final answer
   x = 49,084.94