Finding the Third Proportional to 80,234.50 and 123,811

Step by Step Solution

1. Step 1: Write the proportion equation
   80,234.50 : 123,811 = 123,811 : x
2. Step 2: Convert to fraction form
   80,234.50/123,811 = 123,811/x
3. Step 3: Cross multiply
   80,234.50x = 123,811 × 123,811
4. Step 4: Simplify right side
   80,234.50x = 15,329,163,721
5. Step 5: Solve for x
   x = 15,329,163,721/80,234.50
6. Step 6: Final answer
   x = 191,054.52