Finding the Third Proportional to 80,287.88 and 123,456.38

Step by Step Solution

1. Step 1: Write the proportion equation
   80,287.88 : 123,456.38 = 123,456.38 : x
2. Step 2: Convert to fraction form
   80,287.88/123,456.38 = 123,456.38/x
3. Step 3: Cross multiply
   80,287.88x = 123,456.38 × 123,456.38
4. Step 4: Simplify right side
   80,287.88x = 15,241,476,528.14
5. Step 5: Solve for x
   x = 15,241,476,528.14/80,287.88
6. Step 6: Final answer
   x = 189,835.35