Finding the Third Proportional to 239,211 and 325,012.50

Step by Step Solution

1. Step 1: Write the proportion equation
   239,211 : 325,012.50 = 325,012.50 : x
2. Step 2: Convert to fraction form
   239,211/325,012.50 = 325,012.50/x
3. Step 3: Cross multiply
   239,211x = 325,012.50 × 325,012.50
4. Step 4: Simplify right side
   239,211x = 105,633,125,156.25
5. Step 5: Solve for x
   x = 105,633,125,156.25/239,211
6. Step 6: Final answer
   x = 441,589.75