Finding the Third Proportional to 708,462 and 823,621.50

Step by Step Solution

1. Step 1: Write the proportion equation
   708,462 : 823,621.50 = 823,621.50 : x
2. Step 2: Convert to fraction form
   708,462/823,621.50 = 823,621.50/x
3. Step 3: Cross multiply
   708,462x = 823,621.50 × 823,621.50
4. Step 4: Simplify right side
   708,462x = 678,352,375,262.25
5. Step 5: Solve for x
   x = 678,352,375,262.25/708,462
6. Step 6: Final answer
   x = 957,500.01