Finding the Third Proportional to 1,009,561 and 2,159,198

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009,561 : 2,159,198 = 2,159,198 : x
2. Step 2: Convert to fraction form
   1,009,561/2,159,198 = 2,159,198/x
3. Step 3: Cross multiply
   1,009,561x = 2,159,198 × 2,159,198
4. Step 4: Simplify right side
   1,009,561x = 4,662,136,003,204
5. Step 5: Solve for x
   x = 4,662,136,003,204/1,009,561
6. Step 6: Final answer
   x = 4,617,983.46