Finding the Third Proportional to 191,799 and 300,879

Step by Step Solution

1. Step 1: Write the proportion equation
   191,799 : 300,879 = 300,879 : x
2. Step 2: Convert to fraction form
   191,799/300,879 = 300,879/x
3. Step 3: Cross multiply
   191,799x = 300,879 × 300,879
4. Step 4: Simplify right side
   191,799x = 90,528,172,641
5. Step 5: Solve for x
   x = 90,528,172,641/191,799
6. Step 6: Final answer
   x = 471,995.02