Finding the Third Proportional to 234,900 and 516,456

Step by Step Solution

1. Step 1: Write the proportion equation
   234,900 : 516,456 = 516,456 : x
2. Step 2: Convert to fraction form
   234,900/516,456 = 516,456/x
3. Step 3: Cross multiply
   234,900x = 516,456 × 516,456
4. Step 4: Simplify right side
   234,900x = 266,726,799,936
5. Step 5: Solve for x
   x = 266,726,799,936/234,900
6. Step 6: Final answer
   x = 1,135,490.85