Finding the Third Proportional to 287.02 and 625.27

Step by Step Solution

1. Step 1: Write the proportion equation
   287.02 : 625.27 = 625.27 : x
2. Step 2: Convert to fraction form
   287.02/625.27 = 625.27/x
3. Step 3: Cross multiply
   287.02x = 625.27 × 625.27
4. Step 4: Simplify right side
   287.02x = 390,957.10
5. Step 5: Solve for x
   x = 390,957.10/287.02
6. Step 6: Final answer
   x = 1,362.15