Finding the Third Proportional to 540.38 and 1,158.56

Step by Step Solution

1. Step 1: Write the proportion equation
   540.38 : 1,158.56 = 1,158.56 : x
2. Step 2: Convert to fraction form
   540.38/1,158.56 = 1,158.56/x
3. Step 3: Cross multiply
   540.38x = 1,158.56 × 1,158.56
4. Step 4: Simplify right side
   540.38x = 1,342,267.07
5. Step 5: Solve for x
   x = 1,342,267.07/540.38
6. Step 6: Final answer
   x = 2,483.95