Finding the Third Proportional to 300,028 and 422,026

Step by Step Solution

1. Step 1: Write the proportion equation
   300,028 : 422,026 = 422,026 : x
2. Step 2: Convert to fraction form
   300,028/422,026 = 422,026/x
3. Step 3: Cross multiply
   300,028x = 422,026 × 422,026
4. Step 4: Simplify right side
   300,028x = 178,105,944,676
5. Step 5: Solve for x
   x = 178,105,944,676/300,028
6. Step 6: Final answer
   x = 593,631.08