Finding the Third Proportional to 222,813 and 335,287.50

Step by Step Solution

1. Step 1: Write the proportion equation
   222,813 : 335,287.50 = 335,287.50 : x
2. Step 2: Convert to fraction form
   222,813/335,287.50 = 335,287.50/x
3. Step 3: Cross multiply
   222,813x = 335,287.50 × 335,287.50
4. Step 4: Simplify right side
   222,813x = 112,417,707,656.25
5. Step 5: Solve for x
   x = 112,417,707,656.25/222,813
6. Step 6: Final answer
   x = 504,538.37