Finding the Third Proportional to 708,471 and 823,630.50

Step by Step Solution

1. Step 1: Write the proportion equation
   708,471 : 823,630.50 = 823,630.50 : x
2. Step 2: Convert to fraction form
   708,471/823,630.50 = 823,630.50/x
3. Step 3: Cross multiply
   708,471x = 823,630.50 × 823,630.50
4. Step 4: Simplify right side
   708,471x = 678,367,200,530.25
5. Step 5: Solve for x
   x = 678,367,200,530.25/708,471
6. Step 6: Final answer
   x = 957,508.78