Finding the Third Proportional to 209,400 and 333,525

Step by Step Solution

1. Step 1: Write the proportion equation
   209,400 : 333,525 = 333,525 : x
2. Step 2: Convert to fraction form
   209,400/333,525 = 333,525/x
3. Step 3: Cross multiply
   209,400x = 333,525 × 333,525
4. Step 4: Simplify right side
   209,400x = 111,238,925,625
5. Step 5: Solve for x
   x = 111,238,925,625/209,400
6. Step 6: Final answer
   x = 531,226.96