Finding the Third Proportional to 75,721.50 and 147,744

Step by Step Solution

1. Step 1: Write the proportion equation
   75,721.50 : 147,744 = 147,744 : x
2. Step 2: Convert to fraction form
   75,721.50/147,744 = 147,744/x
3. Step 3: Cross multiply
   75,721.50x = 147,744 × 147,744
4. Step 4: Simplify right side
   75,721.50x = 21,828,289,536
5. Step 5: Solve for x
   x = 21,828,289,536/75,721.50
6. Step 6: Final answer
   x = 288,270.70