Finding the Third Proportional to 561,719.50 and 1,228,530

Step by Step Solution

1. Step 1: Write the proportion equation
   561,719.50 : 1,228,530 = 1,228,530 : x
2. Step 2: Convert to fraction form
   561,719.50/1,228,530 = 1,228,530/x
3. Step 3: Cross multiply
   561,719.50x = 1,228,530 × 1,228,530
4. Step 4: Simplify right side
   561,719.50x = 1,509,285,960,900
5. Step 5: Solve for x
   x = 1,509,285,960,900/561,719.50
6. Step 6: Final answer
   x = 2,686,903.27