Finding the Third Proportional to 145,141.50 and 219,900

Step by Step Solution

1. Step 1: Write the proportion equation
   145,141.50 : 219,900 = 219,900 : x
2. Step 2: Convert to fraction form
   145,141.50/219,900 = 219,900/x
3. Step 3: Cross multiply
   145,141.50x = 219,900 × 219,900
4. Step 4: Simplify right side
   145,141.50x = 48,356,010,000
5. Step 5: Solve for x
   x = 48,356,010,000/145,141.50
6. Step 6: Final answer
   x = 333,164.60