Finding the Third Proportional to 2,398.50 and 5,245.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398.50 : 5,245.88 = 5,245.88 : x
2. Step 2: Convert to fraction form
   2,398.50/5,245.88 = 5,245.88/x
3. Step 3: Cross multiply
   2,398.50x = 5,245.88 × 5,245.88
4. Step 4: Simplify right side
   2,398.50x = 27,519,204.52
5. Step 5: Solve for x
   x = 27,519,204.52/2,398.50
6. Step 6: Final answer
   x = 11,473.51