Finding the Third Proportional to 145,654.50 and 223,558.50

Step by Step Solution

1. Step 1: Write the proportion equation
   145,654.50 : 223,558.50 = 223,558.50 : x
2. Step 2: Convert to fraction form
   145,654.50/223,558.50 = 223,558.50/x
3. Step 3: Cross multiply
   145,654.50x = 223,558.50 × 223,558.50
4. Step 4: Simplify right side
   145,654.50x = 49,978,402,922.25
5. Step 5: Solve for x
   x = 49,978,402,922.25/145,654.50
6. Step 6: Final answer
   x = 343,129.82