Finding the Third Proportional to 227,488 and 356,830

Step by Step Solution

1. Step 1: Write the proportion equation
   227,488 : 356,830 = 356,830 : x
2. Step 2: Convert to fraction form
   227,488/356,830 = 356,830/x
3. Step 3: Cross multiply
   227,488x = 356,830 × 356,830
4. Step 4: Simplify right side
   227,488x = 127,327,648,900
5. Step 5: Solve for x
   x = 127,327,648,900/227,488
6. Step 6: Final answer
   x = 559,711.50