Finding the Third Proportional to 320,362.50 and 704,674.50

Step by Step Solution

1. Step 1: Write the proportion equation
   320,362.50 : 704,674.50 = 704,674.50 : x
2. Step 2: Convert to fraction form
   320,362.50/704,674.50 = 704,674.50/x
3. Step 3: Cross multiply
   320,362.50x = 704,674.50 × 704,674.50
4. Step 4: Simplify right side
   320,362.50x = 496,566,150,950.25
5. Step 5: Solve for x
   x = 496,566,150,950.25/320,362.50
6. Step 6: Final answer
   x = 1,550,013.35