Finding the Third Proportional to 172,800 and 274,752

Step by Step Solution

1. Step 1: Write the proportion equation
   172,800 : 274,752 = 274,752 : x
2. Step 2: Convert to fraction form
   172,800/274,752 = 274,752/x
3. Step 3: Cross multiply
   172,800x = 274,752 × 274,752
4. Step 4: Simplify right side
   172,800x = 75,488,661,504
5. Step 5: Solve for x
   x = 75,488,661,504/172,800
6. Step 6: Final answer
   x = 436,855.68