Finding the Third Proportional to 80,274 and 123,429.75

Step by Step Solution

1. Step 1: Write the proportion equation
   80,274 : 123,429.75 = 123,429.75 : x
2. Step 2: Convert to fraction form
   80,274/123,429.75 = 123,429.75/x
3. Step 3: Cross multiply
   80,274x = 123,429.75 × 123,429.75
4. Step 4: Simplify right side
   80,274x = 15,234,903,185.06
5. Step 5: Solve for x
   x = 15,234,903,185.06/80,274
6. Step 6: Final answer
   x = 189,786.27