Finding the Third Proportional to 699.94 and 1,521.38

Step by Step Solution

1. Step 1: Write the proportion equation
   699.94 : 1,521.38 = 1,521.38 : x
2. Step 2: Convert to fraction form
   699.94/1,521.38 = 1,521.38/x
3. Step 3: Cross multiply
   699.94x = 1,521.38 × 1,521.38
4. Step 4: Simplify right side
   699.94x = 2,314,581.89
5. Step 5: Solve for x
   x = 2,314,581.89/699.94
6. Step 6: Final answer
   x = 3,306.84