Finding the Third Proportional to 1,155 and 2,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155 : 2,404.50 = 2,404.50 : x
2. Step 2: Convert to fraction form
   1,155/2,404.50 = 2,404.50/x
3. Step 3: Cross multiply
   1,155x = 2,404.50 × 2,404.50
4. Step 4: Simplify right side
   1,155x = 5,781,620.25
5. Step 5: Solve for x
   x = 5,781,620.25/1,155
6. Step 6: Final answer
   x = 5,005.73