Finding the Third Proportional to 30,992 and 67,744

Step by Step Solution

1. Step 1: Write the proportion equation
   30,992 : 67,744 = 67,744 : x
2. Step 2: Convert to fraction form
   30,992/67,744 = 67,744/x
3. Step 3: Cross multiply
   30,992x = 67,744 × 67,744
4. Step 4: Simplify right side
   30,992x = 4,589,249,536
5. Step 5: Solve for x
   x = 4,589,249,536/30,992
6. Step 6: Final answer
   x = 148,078.52