Finding the Third Proportional to 1,669.36 and 3,608.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,669.36 : 3,608.30 = 3,608.30 : x
2. Step 2: Convert to fraction form
   1,669.36/3,608.30 = 3,608.30/x
3. Step 3: Cross multiply
   1,669.36x = 3,608.30 × 3,608.30
4. Step 4: Simplify right side
   1,669.36x = 13,019,806.34
5. Step 5: Solve for x
   x = 13,019,806.34/1,669.36
6. Step 6: Final answer
   x = 7,799.28