Finding the Third Proportional to 248,976.50 and 377,223.50

Step by Step Solution

1. Step 1: Write the proportion equation
   248,976.50 : 377,223.50 = 377,223.50 : x
2. Step 2: Convert to fraction form
   248,976.50/377,223.50 = 377,223.50/x
3. Step 3: Cross multiply
   248,976.50x = 377,223.50 × 377,223.50
4. Step 4: Simplify right side
   248,976.50x = 142,297,568,952.25
5. Step 5: Solve for x
   x = 142,297,568,952.25/248,976.50
6. Step 6: Final answer
   x = 571,530.12