Finding the Third Proportional to 1,624.78 and 3,540.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,624.78 : 3,540.94 = 3,540.94 : x
2. Step 2: Convert to fraction form
   1,624.78/3,540.94 = 3,540.94/x
3. Step 3: Cross multiply
   1,624.78x = 3,540.94 × 3,540.94
4. Step 4: Simplify right side
   1,624.78x = 12,538,238.38
5. Step 5: Solve for x
   x = 12,538,238.38/1,624.78
6. Step 6: Final answer
   x = 7,716.88