Finding the Third Proportional to 284,356.50 and 618,536

Step by Step Solution

1. Step 1: Write the proportion equation
   284,356.50 : 618,536 = 618,536 : x
2. Step 2: Convert to fraction form
   284,356.50/618,536 = 618,536/x
3. Step 3: Cross multiply
   284,356.50x = 618,536 × 618,536
4. Step 4: Simplify right side
   284,356.50x = 382,586,783,296
5. Step 5: Solve for x
   x = 382,586,783,296/284,356.50
6. Step 6: Final answer
   x = 1,345,447.65