Finding the Third Proportional to 355,287.75 and 777,006

Step by Step Solution

1. Step 1: Write the proportion equation
   355,287.75 : 777,006 = 777,006 : x
2. Step 2: Convert to fraction form
   355,287.75/777,006 = 777,006/x
3. Step 3: Cross multiply
   355,287.75x = 777,006 × 777,006
4. Step 4: Simplify right side
   355,287.75x = 603,738,324,036
5. Step 5: Solve for x
   x = 603,738,324,036/355,287.75
6. Step 6: Final answer
   x = 1,699,293.95