Finding the Third Proportional to 354,783 and 535,846.50

Step by Step Solution

1. Step 1: Write the proportion equation
   354,783 : 535,846.50 = 535,846.50 : x
2. Step 2: Convert to fraction form
   354,783/535,846.50 = 535,846.50/x
3. Step 3: Cross multiply
   354,783x = 535,846.50 × 535,846.50
4. Step 4: Simplify right side
   354,783x = 287,131,471,562.25
5. Step 5: Solve for x
   x = 287,131,471,562.25/354,783
6. Step 6: Final answer
   x = 809,315.76