Finding the Third Proportional to 300.06 and 649.88

Step by Step Solution

1. Step 1: Write the proportion equation
   300.06 : 649.88 = 649.88 : x
2. Step 2: Convert to fraction form
   300.06/649.88 = 649.88/x
3. Step 3: Cross multiply
   300.06x = 649.88 × 649.88
4. Step 4: Simplify right side
   300.06x = 422,337.52
5. Step 5: Solve for x
   x = 422,337.52/300.06
6. Step 6: Final answer
   x = 1,407.50