Finding the Third Proportional to 1,221,697 and 1,606,554

Step by Step Solution

1. Step 1: Write the proportion equation
   1,221,697 : 1,606,554 = 1,606,554 : x
2. Step 2: Convert to fraction form
   1,221,697/1,606,554 = 1,606,554/x
3. Step 3: Cross multiply
   1,221,697x = 1,606,554 × 1,606,554
4. Step 4: Simplify right side
   1,221,697x = 2,581,015,754,916
5. Step 5: Solve for x
   x = 2,581,015,754,916/1,221,697
6. Step 6: Final answer
   x = 2,112,648.03