Finding the Third Proportional to 91,892 and 197,864

Step by Step Solution

1. Step 1: Write the proportion equation
   91,892 : 197,864 = 197,864 : x
2. Step 2: Convert to fraction form
   91,892/197,864 = 197,864/x
3. Step 3: Cross multiply
   91,892x = 197,864 × 197,864
4. Step 4: Simplify right side
   91,892x = 39,150,162,496
5. Step 5: Solve for x
   x = 39,150,162,496/91,892
6. Step 6: Final answer
   x = 426,045.38