Finding the Third Proportional to 14,144 and 31,111.75

Step by Step Solution

1. Step 1: Write the proportion equation
   14,144 : 31,111.75 = 31,111.75 : x
2. Step 2: Convert to fraction form
   14,144/31,111.75 = 31,111.75/x
3. Step 3: Cross multiply
   14,144x = 31,111.75 × 31,111.75
4. Step 4: Simplify right side
   14,144x = 967,940,988.06
5. Step 5: Solve for x
   x = 967,940,988.06/14,144
6. Step 6: Final answer
   x = 68,434.74