Finding the Third Proportional to 561,516 and 1,228,008

Step by Step Solution

1. Step 1: Write the proportion equation
   561,516 : 1,228,008 = 1,228,008 : x
2. Step 2: Convert to fraction form
   561,516/1,228,008 = 1,228,008/x
3. Step 3: Cross multiply
   561,516x = 1,228,008 × 1,228,008
4. Step 4: Simplify right side
   561,516x = 1,508,003,648,064
5. Step 5: Solve for x
   x = 1,508,003,648,064/561,516
6. Step 6: Final answer
   x = 2,685,593.37