Finding the Third Proportional to 1,648.50 and 3,090.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648.50 : 3,090.75 = 3,090.75 : x
2. Step 2: Convert to fraction form
   1,648.50/3,090.75 = 3,090.75/x
3. Step 3: Cross multiply
   1,648.50x = 3,090.75 × 3,090.75
4. Step 4: Simplify right side
   1,648.50x = 9,552,735.56
5. Step 5: Solve for x
   x = 9,552,735.56/1,648.50
6. Step 6: Final answer
   x = 5,794.80