Finding the Third Proportional to 67,311 and 141,723

Step by Step Solution

1. Step 1: Write the proportion equation
   67,311 : 141,723 = 141,723 : x
2. Step 2: Convert to fraction form
   67,311/141,723 = 141,723/x
3. Step 3: Cross multiply
   67,311x = 141,723 × 141,723
4. Step 4: Simplify right side
   67,311x = 20,085,408,729
5. Step 5: Solve for x
   x = 20,085,408,729/67,311
6. Step 6: Final answer
   x = 298,397.12