Finding the Third Proportional to 144,585 and 222,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,585 : 222,385.50 = 222,385.50 : x
2. Step 2: Convert to fraction form
   144,585/222,385.50 = 222,385.50/x
3. Step 3: Cross multiply
   144,585x = 222,385.50 × 222,385.50
4. Step 4: Simplify right side
   144,585x = 49,455,310,610.25
5. Step 5: Solve for x
   x = 49,455,310,610.25/144,585
6. Step 6: Final answer
   x = 342,050.08