Finding the Third Proportional to 31,517.44 and 68,284.69

Step by Step Solution

1. Step 1: Write the proportion equation
   31,517.44 : 68,284.69 = 68,284.69 : x
2. Step 2: Convert to fraction form
   31,517.44/68,284.69 = 68,284.69/x
3. Step 3: Cross multiply
   31,517.44x = 68,284.69 × 68,284.69
4. Step 4: Simplify right side
   31,517.44x = 4,662,798,546.97
5. Step 5: Solve for x
   x = 4,662,798,546.97/31,517.44
6. Step 6: Final answer
   x = 147,943.45