Finding the Third Proportional to 161,112 and 345,540

Step by Step Solution

1. Step 1: Write the proportion equation
   161,112 : 345,540 = 345,540 : x
2. Step 2: Convert to fraction form
   161,112/345,540 = 345,540/x
3. Step 3: Cross multiply
   161,112x = 345,540 × 345,540
4. Step 4: Simplify right side
   161,112x = 119,397,891,600
5. Step 5: Solve for x
   x = 119,397,891,600/161,112
6. Step 6: Final answer
   x = 741,086.27