Finding the Third Proportional to 158,986 and 222,819

Step by Step Solution

1. Step 1: Write the proportion equation
   158,986 : 222,819 = 222,819 : x
2. Step 2: Convert to fraction form
   158,986/222,819 = 222,819/x
3. Step 3: Cross multiply
   158,986x = 222,819 × 222,819
4. Step 4: Simplify right side
   158,986x = 49,648,306,761
5. Step 5: Solve for x
   x = 49,648,306,761/158,986
6. Step 6: Final answer
   x = 312,281.00