Finding the Third Proportional to 191,040 and 391,656

Step by Step Solution

1. Step 1: Write the proportion equation
   191,040 : 391,656 = 391,656 : x
2. Step 2: Convert to fraction form
   191,040/391,656 = 391,656/x
3. Step 3: Cross multiply
   191,040x = 391,656 × 391,656
4. Step 4: Simplify right side
   191,040x = 153,394,422,336
5. Step 5: Solve for x
   x = 153,394,422,336/191,040
6. Step 6: Final answer
   x = 802,944.00