Finding the Third Proportional to 144,478.69 and 222,390.56

Step by Step Solution

1. Step 1: Write the proportion equation
   144,478.69 : 222,390.56 = 222,390.56 : x
2. Step 2: Convert to fraction form
   144,478.69/222,390.56 = 222,390.56/x
3. Step 3: Cross multiply
   144,478.69x = 222,390.56 × 222,390.56
4. Step 4: Simplify right side
   144,478.69x = 49,457,562,289.07
5. Step 5: Solve for x
   x = 49,457,562,289.07/144,478.69
6. Step 6: Final answer
   x = 342,317.36