Finding the Third Proportional to 50,680 and 79,500

Step by Step Solution

1. Step 1: Write the proportion equation
   50,680 : 79,500 = 79,500 : x
2. Step 2: Convert to fraction form
   50,680/79,500 = 79,500/x
3. Step 3: Cross multiply
   50,680x = 79,500 × 79,500
4. Step 4: Simplify right side
   50,680x = 6,320,250,000
5. Step 5: Solve for x
   x = 6,320,250,000/50,680
6. Step 6: Final answer
   x = 124,708.96