Finding the Third Proportional to 2,418 and 5,200.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,418 : 5,200.50 = 5,200.50 : x
2. Step 2: Convert to fraction form
   2,418/5,200.50 = 5,200.50/x
3. Step 3: Cross multiply
   2,418x = 5,200.50 × 5,200.50
4. Step 4: Simplify right side
   2,418x = 27,045,200.25
5. Step 5: Solve for x
   x = 27,045,200.25/2,418
6. Step 6: Final answer
   x = 11,184.95