Finding the Third Proportional to 67,992.50 and 144,089

Step by Step Solution

1. Step 1: Write the proportion equation
   67,992.50 : 144,089 = 144,089 : x
2. Step 2: Convert to fraction form
   67,992.50/144,089 = 144,089/x
3. Step 3: Cross multiply
   67,992.50x = 144,089 × 144,089
4. Step 4: Simplify right side
   67,992.50x = 20,761,639,921
5. Step 5: Solve for x
   x = 20,761,639,921/67,992.50
6. Step 6: Final answer
   x = 305,351.91