Finding the Third Proportional to 1,221,446 and 1,606,197

Step by Step Solution

1. Step 1: Write the proportion equation
   1,221,446 : 1,606,197 = 1,606,197 : x
2. Step 2: Convert to fraction form
   1,221,446/1,606,197 = 1,606,197/x
3. Step 3: Cross multiply
   1,221,446x = 1,606,197 × 1,606,197
4. Step 4: Simplify right side
   1,221,446x = 2,579,868,802,809
5. Step 5: Solve for x
   x = 2,579,868,802,809/1,221,446
6. Step 6: Final answer
   x = 2,112,143.15