Finding the Third Proportional to 1,115.44 and 2,402.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,115.44 : 2,402.16 = 2,402.16 : x
2. Step 2: Convert to fraction form
   1,115.44/2,402.16 = 2,402.16/x
3. Step 3: Cross multiply
   1,115.44x = 2,402.16 × 2,402.16
4. Step 4: Simplify right side
   1,115.44x = 5,770,354.65
5. Step 5: Solve for x
   x = 5,770,354.65/1,115.44
6. Step 6: Final answer
   x = 5,173.18