Finding the Third Proportional to 31,955.91 and 68,817.28

Step by Step Solution

1. Step 1: Write the proportion equation
   31,955.91 : 68,817.28 = 68,817.28 : x
2. Step 2: Convert to fraction form
   31,955.91/68,817.28 = 68,817.28/x
3. Step 3: Cross multiply
   31,955.91x = 68,817.28 × 68,817.28
4. Step 4: Simplify right side
   31,955.91x = 4,735,818,198.64
5. Step 5: Solve for x
   x = 4,735,818,198.64/31,955.91
6. Step 6: Final answer
   x = 148,198.53