Finding the Third Proportional to 531.94 and 1,131.38

Step by Step Solution

1. Step 1: Write the proportion equation
   531.94 : 1,131.38 = 1,131.38 : x
2. Step 2: Convert to fraction form
   531.94/1,131.38 = 1,131.38/x
3. Step 3: Cross multiply
   531.94x = 1,131.38 × 1,131.38
4. Step 4: Simplify right side
   531.94x = 1,280,009.39
5. Step 5: Solve for x
   x = 1,280,009.39/531.94
6. Step 6: Final answer
   x = 2,406.32