Finding the Third Proportional to 31,664.25 and 67,759.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,664.25 : 67,759.88 = 67,759.88 : x
2. Step 2: Convert to fraction form
   31,664.25/67,759.88 = 67,759.88/x
3. Step 3: Cross multiply
   31,664.25x = 67,759.88 × 67,759.88
4. Step 4: Simplify right side
   31,664.25x = 4,591,400,660.02
5. Step 5: Solve for x
   x = 4,591,400,660.02/31,664.25
6. Step 6: Final answer
   x = 145,002.67