Finding the Third Proportional to 2,618.44 and 5,538.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618.44 : 5,538.94 = 5,538.94 : x
2. Step 2: Convert to fraction form
   2,618.44/5,538.94 = 5,538.94/x
3. Step 3: Cross multiply
   2,618.44x = 5,538.94 × 5,538.94
4. Step 4: Simplify right side
   2,618.44x = 30,679,828.63
5. Step 5: Solve for x
   x = 30,679,828.63/2,618.44
6. Step 6: Final answer
   x = 11,716.85