Finding the Third Proportional to 743,966 and 1,620,790

Step by Step Solution

1. Step 1: Write the proportion equation
   743,966 : 1,620,790 = 1,620,790 : x
2. Step 2: Convert to fraction form
   743,966/1,620,790 = 1,620,790/x
3. Step 3: Cross multiply
   743,966x = 1,620,790 × 1,620,790
4. Step 4: Simplify right side
   743,966x = 2,626,960,224,100
5. Step 5: Solve for x
   x = 2,626,960,224,100/743,966
6. Step 6: Final answer
   x = 3,531,021.88