Finding the Third Proportional to 1,398.94 and 2,132.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,398.94 : 2,132.16 = 2,132.16 : x
2. Step 2: Convert to fraction form
   1,398.94/2,132.16 = 2,132.16/x
3. Step 3: Cross multiply
   1,398.94x = 2,132.16 × 2,132.16
4. Step 4: Simplify right side
   1,398.94x = 4,546,090.27
5. Step 5: Solve for x
   x = 4,546,090.27/1,398.94
6. Step 6: Final answer
   x = 3,249.67