Finding the Third Proportional to 355,362 and 777,150.75

Step by Step Solution

1. Step 1: Write the proportion equation
   355,362 : 777,150.75 = 777,150.75 : x
2. Step 2: Convert to fraction form
   355,362/777,150.75 = 777,150.75/x
3. Step 3: Cross multiply
   355,362x = 777,150.75 × 777,150.75
4. Step 4: Simplify right side
   355,362x = 603,963,288,225.56
5. Step 5: Solve for x
   x = 603,963,288,225.56/355,362
6. Step 6: Final answer
   x = 1,699,571.95