Finding the Third Proportional to 191,746 and 300,809

Step by Step Solution

1. Step 1: Write the proportion equation
   191,746 : 300,809 = 300,809 : x
2. Step 2: Convert to fraction form
   191,746/300,809 = 300,809/x
3. Step 3: Cross multiply
   191,746x = 300,809 × 300,809
4. Step 4: Simplify right side
   191,746x = 90,486,054,481
5. Step 5: Solve for x
   x = 90,486,054,481/191,746
6. Step 6: Final answer
   x = 471,905.83