Finding the Third Proportional to 209,715.50 and 333,575.25

Step by Step Solution

1. Step 1: Write the proportion equation
   209,715.50 : 333,575.25 = 333,575.25 : x
2. Step 2: Convert to fraction form
   209,715.50/333,575.25 = 333,575.25/x
3. Step 3: Cross multiply
   209,715.50x = 333,575.25 × 333,575.25
4. Step 4: Simplify right side
   209,715.50x = 111,272,447,412.56
5. Step 5: Solve for x
   x = 111,272,447,412.56/209,715.50
6. Step 6: Final answer
   x = 530,587.62