Finding the Third Proportional to 3,665.25 and 7,998.75

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.25 : 7,998.75 = 7,998.75 : x
2. Step 2: Convert to fraction form
   3,665.25/7,998.75 = 7,998.75/x
3. Step 3: Cross multiply
   3,665.25x = 7,998.75 × 7,998.75
4. Step 4: Simplify right side
   3,665.25x = 63,980,001.56
5. Step 5: Solve for x
   x = 63,980,001.56/3,665.25
6. Step 6: Final answer
   x = 17,455.84