Finding the Third Proportional to 300.88 and 426.13

Step by Step Solution

1. Step 1: Write the proportion equation
   300.88 : 426.13 = 426.13 : x
2. Step 2: Convert to fraction form
   300.88/426.13 = 426.13/x
3. Step 3: Cross multiply
   300.88x = 426.13 × 426.13
4. Step 4: Simplify right side
   300.88x = 181,582.52
5. Step 5: Solve for x
   x = 181,582.52/300.88
6. Step 6: Final answer
   x = 603.51