Finding the Third Proportional to 31,227.75 and 68,204.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,227.75 : 68,204.25 = 68,204.25 : x
2. Step 2: Convert to fraction form
   31,227.75/68,204.25 = 68,204.25/x
3. Step 3: Cross multiply
   31,227.75x = 68,204.25 × 68,204.25
4. Step 4: Simplify right side
   31,227.75x = 4,651,819,718.06
5. Step 5: Solve for x
   x = 4,651,819,718.06/31,227.75
6. Step 6: Final answer
   x = 148,964.29