Finding the Third Proportional to 476,716 and 699,489.50

Step by Step Solution

1. Step 1: Write the proportion equation
   476,716 : 699,489.50 = 699,489.50 : x
2. Step 2: Convert to fraction form
   476,716/699,489.50 = 699,489.50/x
3. Step 3: Cross multiply
   476,716x = 699,489.50 × 699,489.50
4. Step 4: Simplify right side
   476,716x = 489,285,560,610.25
5. Step 5: Solve for x
   x = 489,285,560,610.25/476,716
6. Step 6: Final answer
   x = 1,026,366.98