Finding the Third Proportional to 404,702.50 and 584,674.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,702.50 : 584,674.50 = 584,674.50 : x
2. Step 2: Convert to fraction form
   404,702.50/584,674.50 = 584,674.50/x
3. Step 3: Cross multiply
   404,702.50x = 584,674.50 × 584,674.50
4. Step 4: Simplify right side
   404,702.50x = 341,844,270,950.25
5. Step 5: Solve for x
   x = 341,844,270,950.25/404,702.50
6. Step 6: Final answer
   x = 844,680.40