Finding the Third Proportional to 19,391.13 and 31,111.38

Step by Step Solution

1. Step 1: Write the proportion equation
   19,391.13 : 31,111.38 = 31,111.38 : x
2. Step 2: Convert to fraction form
   19,391.13/31,111.38 = 31,111.38/x
3. Step 3: Cross multiply
   19,391.13x = 31,111.38 × 31,111.38
4. Step 4: Simplify right side
   19,391.13x = 967,917,654.39
5. Step 5: Solve for x
   x = 967,917,654.39/19,391.13
6. Step 6: Final answer
   x = 49,915.50