Finding the Third Proportional to 172,608 and 372,960

Step by Step Solution

1. Step 1: Write the proportion equation
   172,608 : 372,960 = 372,960 : x
2. Step 2: Convert to fraction form
   172,608/372,960 = 372,960/x
3. Step 3: Cross multiply
   172,608x = 372,960 × 372,960
4. Step 4: Simplify right side
   172,608x = 139,099,161,600
5. Step 5: Solve for x
   x = 139,099,161,600/172,608
6. Step 6: Final answer
   x = 805,867.41