Finding the Third Proportional to 408,046.50 and 573,601.50

Step by Step Solution

1. Step 1: Write the proportion equation
   408,046.50 : 573,601.50 = 573,601.50 : x
2. Step 2: Convert to fraction form
   408,046.50/573,601.50 = 573,601.50/x
3. Step 3: Cross multiply
   408,046.50x = 573,601.50 × 573,601.50
4. Step 4: Simplify right side
   408,046.50x = 329,018,680,802.25
5. Step 5: Solve for x
   x = 329,018,680,802.25/408,046.50
6. Step 6: Final answer
   x = 806,326.44