Finding the Third Proportional to 191,822 and 300,905

Step by Step Solution

1. Step 1: Write the proportion equation
   191,822 : 300,905 = 300,905 : x
2. Step 2: Convert to fraction form
   191,822/300,905 = 300,905/x
3. Step 3: Cross multiply
   191,822x = 300,905 × 300,905
4. Step 4: Simplify right side
   191,822x = 90,543,819,025
5. Step 5: Solve for x
   x = 90,543,819,025/191,822
6. Step 6: Final answer
   x = 472,019.99