Finding the Third Proportional to 2,223 and 5,152.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223 : 5,152.50 = 5,152.50 : x
2. Step 2: Convert to fraction form
   2,223/5,152.50 = 5,152.50/x
3. Step 3: Cross multiply
   2,223x = 5,152.50 × 5,152.50
4. Step 4: Simplify right side
   2,223x = 26,548,256.25
5. Step 5: Solve for x
   x = 26,548,256.25/2,223
6. Step 6: Final answer
   x = 11,942.54