Finding the Third Proportional to 303.33 and 642.52

Step by Step Solution

1. Step 1: Write the proportion equation
   303.33 : 642.52 = 642.52 : x
2. Step 2: Convert to fraction form
   303.33/642.52 = 642.52/x
3. Step 3: Cross multiply
   303.33x = 642.52 × 642.52
4. Step 4: Simplify right side
   303.33x = 412,826.33
5. Step 5: Solve for x
   x = 412,826.33/303.33
6. Step 6: Final answer
   x = 1,360.99