Finding the Third Proportional to 50,686 and 79,510

Step by Step Solution

1. Step 1: Write the proportion equation
   50,686 : 79,510 = 79,510 : x
2. Step 2: Convert to fraction form
   50,686/79,510 = 79,510/x
3. Step 3: Cross multiply
   50,686x = 79,510 × 79,510
4. Step 4: Simplify right side
   50,686x = 6,321,840,100
5. Step 5: Solve for x
   x = 6,321,840,100/50,686
6. Step 6: Final answer
   x = 124,725.57