Finding the Third Proportional to 221,157.25 and 333,568.50

Step by Step Solution

1. Step 1: Write the proportion equation
   221,157.25 : 333,568.50 = 333,568.50 : x
2. Step 2: Convert to fraction form
   221,157.25/333,568.50 = 333,568.50/x
3. Step 3: Cross multiply
   221,157.25x = 333,568.50 × 333,568.50
4. Step 4: Simplify right side
   221,157.25x = 111,267,944,192.25
5. Step 5: Solve for x
   x = 111,267,944,192.25/221,157.25
6. Step 6: Final answer
   x = 503,116.87