Finding the Third Proportional to 50,900 and 79,158

Step by Step Solution

1. Step 1: Write the proportion equation
   50,900 : 79,158 = 79,158 : x
2. Step 2: Convert to fraction form
   50,900/79,158 = 79,158/x
3. Step 3: Cross multiply
   50,900x = 79,158 × 79,158
4. Step 4: Simplify right side
   50,900x = 6,265,988,964
5. Step 5: Solve for x
   x = 6,265,988,964/50,900
6. Step 6: Final answer
   x = 123,103.91