Finding the Third Proportional to 143,020.69 and 222,914.53

Step by Step Solution

1. Step 1: Write the proportion equation
   143,020.69 : 222,914.53 = 222,914.53 : x
2. Step 2: Convert to fraction form
   143,020.69/222,914.53 = 222,914.53/x
3. Step 3: Cross multiply
   143,020.69x = 222,914.53 × 222,914.53
4. Step 4: Simplify right side
   143,020.69x = 49,690,888,242.41
5. Step 5: Solve for x
   x = 49,690,888,242.41/143,020.69
6. Step 6: Final answer
   x = 347,438.47