Finding the Third Proportional to 272,018 and 587,830

Step by Step Solution

1. Step 1: Write the proportion equation
   272,018 : 587,830 = 587,830 : x
2. Step 2: Convert to fraction form
   272,018/587,830 = 587,830/x
3. Step 3: Cross multiply
   272,018x = 587,830 × 587,830
4. Step 4: Simplify right side
   272,018x = 345,544,108,900
5. Step 5: Solve for x
   x = 345,544,108,900/272,018
6. Step 6: Final answer
   x = 1,270,298.69