Finding the Third Proportional to 200,552 and 300,872

Step by Step Solution

1. Step 1: Write the proportion equation
   200,552 : 300,872 = 300,872 : x
2. Step 2: Convert to fraction form
   200,552/300,872 = 300,872/x
3. Step 3: Cross multiply
   200,552x = 300,872 × 300,872
4. Step 4: Simplify right side
   200,552x = 90,523,960,384
5. Step 5: Solve for x
   x = 90,523,960,384/200,552
6. Step 6: Final answer
   x = 451,374.01