Finding the Third Proportional to 191,240 and 404,352

Step by Step Solution

1. Step 1: Write the proportion equation
   191,240 : 404,352 = 404,352 : x
2. Step 2: Convert to fraction form
   191,240/404,352 = 404,352/x
3. Step 3: Cross multiply
   191,240x = 404,352 × 404,352
4. Step 4: Simplify right side
   191,240x = 163,500,539,904
5. Step 5: Solve for x
   x = 163,500,539,904/191,240
6. Step 6: Final answer
   x = 854,949.49