Finding the Third Proportional to 1,265,760 and 1,690,824

Step by Step Solution

1. Step 1: Write the proportion equation
   1,265,760 : 1,690,824 = 1,690,824 : x
2. Step 2: Convert to fraction form
   1,265,760/1,690,824 = 1,690,824/x
3. Step 3: Cross multiply
   1,265,760x = 1,690,824 × 1,690,824
4. Step 4: Simplify right side
   1,265,760x = 2,858,885,798,976
5. Step 5: Solve for x
   x = 2,858,885,798,976/1,265,760
6. Step 6: Final answer
   x = 2,258,631.81