Finding the Third Proportional to 2,188.13 and 3,175.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.13 : 3,175.31 = 3,175.31 : x
2. Step 2: Convert to fraction form
   2,188.13/3,175.31 = 3,175.31/x
3. Step 3: Cross multiply
   2,188.13x = 3,175.31 × 3,175.31
4. Step 4: Simplify right side
   2,188.13x = 10,082,609.47
5. Step 5: Solve for x
   x = 10,082,609.47/2,188.13
6. Step 6: Final answer
   x = 4,607.88