Finding the Third Proportional to 221,308.50 and 335,303.25

Step by Step Solution

1. Step 1: Write the proportion equation
   221,308.50 : 335,303.25 = 335,303.25 : x
2. Step 2: Convert to fraction form
   221,308.50/335,303.25 = 335,303.25/x
3. Step 3: Cross multiply
   221,308.50x = 335,303.25 × 335,303.25
4. Step 4: Simplify right side
   221,308.50x = 112,428,269,460.56
5. Step 5: Solve for x
   x = 112,428,269,460.56/221,308.50
6. Step 6: Final answer
   x = 508,016.05