Finding the Third Proportional to 661.61 and 1,433.32

Step by Step Solution

1. Step 1: Write the proportion equation
   661.61 : 1,433.32 = 1,433.32 : x
2. Step 2: Convert to fraction form
   661.61/1,433.32 = 1,433.32/x
3. Step 3: Cross multiply
   661.61x = 1,433.32 × 1,433.32
4. Step 4: Simplify right side
   661.61x = 2,054,407.12
5. Step 5: Solve for x
   x = 2,054,407.12/661.61
6. Step 6: Final answer
   x = 3,105.18