Finding the Third Proportional to 284,184 and 441,540

Step by Step Solution

1. Step 1: Write the proportion equation
   284,184 : 441,540 = 441,540 : x
2. Step 2: Convert to fraction form
   284,184/441,540 = 441,540/x
3. Step 3: Cross multiply
   284,184x = 441,540 × 441,540
4. Step 4: Simplify right side
   284,184x = 194,957,571,600
5. Step 5: Solve for x
   x = 194,957,571,600/284,184
6. Step 6: Final answer
   x = 686,025.86