Finding the Third Proportional to 754.89 and 1,621.42

Step by Step Solution

1. Step 1: Write the proportion equation
   754.89 : 1,621.42 = 1,621.42 : x
2. Step 2: Convert to fraction form
   754.89/1,621.42 = 1,621.42/x
3. Step 3: Cross multiply
   754.89x = 1,621.42 × 1,621.42
4. Step 4: Simplify right side
   754.89x = 2,629,015.23
5. Step 5: Solve for x
   x = 2,629,015.23/754.89
6. Step 6: Final answer
   x = 3,482.63