Finding the Third Proportional to 561,518 and 1,228,012

Step by Step Solution

1. Step 1: Write the proportion equation
   561,518 : 1,228,012 = 1,228,012 : x
2. Step 2: Convert to fraction form
   561,518/1,228,012 = 1,228,012/x
3. Step 3: Cross multiply
   561,518x = 1,228,012 × 1,228,012
4. Step 4: Simplify right side
   561,518x = 1,508,013,472,144
5. Step 5: Solve for x
   x = 1,508,013,472,144/561,518
6. Step 6: Final answer
   x = 2,685,601.30