Finding the Third Proportional to 145,045 and 221,860.50

Step by Step Solution

1. Step 1: Write the proportion equation
   145,045 : 221,860.50 = 221,860.50 : x
2. Step 2: Convert to fraction form
   145,045/221,860.50 = 221,860.50/x
3. Step 3: Cross multiply
   145,045x = 221,860.50 × 221,860.50
4. Step 4: Simplify right side
   145,045x = 49,222,081,460.25
5. Step 5: Solve for x
   x = 49,222,081,460.25/145,045
6. Step 6: Final answer
   x = 339,357.31