Finding the Third Proportional to 1,221,696 and 1,606,553

Step by Step Solution

1. Step 1: Write the proportion equation
   1,221,696 : 1,606,553 = 1,606,553 : x
2. Step 2: Convert to fraction form
   1,221,696/1,606,553 = 1,606,553/x
3. Step 3: Cross multiply
   1,221,696x = 1,606,553 × 1,606,553
4. Step 4: Simplify right side
   1,221,696x = 2,581,012,541,809
5. Step 5: Solve for x
   x = 2,581,012,541,809/1,221,696
6. Step 6: Final answer
   x = 2,112,647.12