Finding the Third Proportional to 191,886 and 268,404

Step by Step Solution

1. Step 1: Write the proportion equation
   191,886 : 268,404 = 268,404 : x
2. Step 2: Convert to fraction form
   191,886/268,404 = 268,404/x
3. Step 3: Cross multiply
   191,886x = 268,404 × 268,404
4. Step 4: Simplify right side
   191,886x = 72,040,707,216
5. Step 5: Solve for x
   x = 72,040,707,216/191,886
6. Step 6: Final answer
   x = 375,434.93