Finding the Third Proportional to 284,269.50 and 618,651

Step by Step Solution

1. Step 1: Write the proportion equation
   284,269.50 : 618,651 = 618,651 : x
2. Step 2: Convert to fraction form
   284,269.50/618,651 = 618,651/x
3. Step 3: Cross multiply
   284,269.50x = 618,651 × 618,651
4. Step 4: Simplify right side
   284,269.50x = 382,729,059,801
5. Step 5: Solve for x
   x = 382,729,059,801/284,269.50
6. Step 6: Final answer
   x = 1,346,359.91