Finding the Third Proportional to 144,486 and 222,356.25

Step by Step Solution

1. Step 1: Write the proportion equation
   144,486 : 222,356.25 = 222,356.25 : x
2. Step 2: Convert to fraction form
   144,486/222,356.25 = 222,356.25/x
3. Step 3: Cross multiply
   144,486x = 222,356.25 × 222,356.25
4. Step 4: Simplify right side
   144,486x = 49,442,301,914.06
5. Step 5: Solve for x
   x = 49,442,301,914.06/144,486
6. Step 6: Final answer
   x = 342,194.41