Finding the Third Proportional to 31,016 and 68,956

Step by Step Solution

1. Step 1: Write the proportion equation
   31,016 : 68,956 = 68,956 : x
2. Step 2: Convert to fraction form
   31,016/68,956 = 68,956/x
3. Step 3: Cross multiply
   31,016x = 68,956 × 68,956
4. Step 4: Simplify right side
   31,016x = 4,754,929,936
5. Step 5: Solve for x
   x = 4,754,929,936/31,016
6. Step 6: Final answer
   x = 153,305.71