Finding the Third Proportional to 302,584.50 and 658,401

Step by Step Solution

1. Step 1: Write the proportion equation
   302,584.50 : 658,401 = 658,401 : x
2. Step 2: Convert to fraction form
   302,584.50/658,401 = 658,401/x
3. Step 3: Cross multiply
   302,584.50x = 658,401 × 658,401
4. Step 4: Simplify right side
   302,584.50x = 433,491,876,801
5. Step 5: Solve for x
   x = 433,491,876,801/302,584.50
6. Step 6: Final answer
   x = 1,432,630.81