Finding the Third Proportional to 297,958 and 425,636

Step by Step Solution

1. Step 1: Write the proportion equation
   297,958 : 425,636 = 425,636 : x
2. Step 2: Convert to fraction form
   297,958/425,636 = 425,636/x
3. Step 3: Cross multiply
   297,958x = 425,636 × 425,636
4. Step 4: Simplify right side
   297,958x = 181,166,004,496
5. Step 5: Solve for x
   x = 181,166,004,496/297,958
6. Step 6: Final answer
   x = 608,025.31