Finding the Third Proportional to 284,234.50 and 611,480

Step by Step Solution

1. Step 1: Write the proportion equation
   284,234.50 : 611,480 = 611,480 : x
2. Step 2: Convert to fraction form
   284,234.50/611,480 = 611,480/x
3. Step 3: Cross multiply
   284,234.50x = 611,480 × 611,480
4. Step 4: Simplify right side
   284,234.50x = 373,907,790,400
5. Step 5: Solve for x
   x = 373,907,790,400/284,234.50
6. Step 6: Final answer
   x = 1,315,490.52