Finding the Third Proportional to 221,157.13 and 333,568.31

Step by Step Solution

1. Step 1: Write the proportion equation
   221,157.13 : 333,568.31 = 333,568.31 : x
2. Step 2: Convert to fraction form
   221,157.13/333,568.31 = 333,568.31/x
3. Step 3: Cross multiply
   221,157.13x = 333,568.31 × 333,568.31
4. Step 4: Simplify right side
   221,157.13x = 111,267,819,104.10
5. Step 5: Solve for x
   x = 111,267,819,104.10/221,157.13
6. Step 6: Final answer
   x = 503,116.59