Finding the Third Proportional to 561.50 and 1,180

Step by Step Solution

1. Step 1: Write the proportion equation
   561.50 : 1,180 = 1,180 : x
2. Step 2: Convert to fraction form
   561.50/1,180 = 1,180/x
3. Step 3: Cross multiply
   561.50x = 1,180 × 1,180
4. Step 4: Simplify right side
   561.50x = 1,392,400
5. Step 5: Solve for x
   x = 1,392,400/561.50
6. Step 6: Final answer
   x = 2,479.79