Finding the Third Proportional to 221,171 and 333,588.75

Step by Step Solution

1. Step 1: Write the proportion equation
   221,171 : 333,588.75 = 333,588.75 : x
2. Step 2: Convert to fraction form
   221,171/333,588.75 = 333,588.75/x
3. Step 3: Cross multiply
   221,171x = 333,588.75 × 333,588.75
4. Step 4: Simplify right side
   221,171x = 111,281,454,126.56
5. Step 5: Solve for x
   x = 111,281,454,126.56/221,171
6. Step 6: Final answer
   x = 503,146.68