Finding the Third Proportional to 2,287.69 and 3,090.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.69 : 3,090.38 = 3,090.38 : x
2. Step 2: Convert to fraction form
   2,287.69/3,090.38 = 3,090.38/x
3. Step 3: Cross multiply
   2,287.69x = 3,090.38 × 3,090.38
4. Step 4: Simplify right side
   2,287.69x = 9,550,417.64
5. Step 5: Solve for x
   x = 9,550,417.64/2,287.69
6. Step 6: Final answer
   x = 4,174.70