Finding the Third Proportional to 1,265,805 and 1,690,902

Step by Step Solution

1. Step 1: Write the proportion equation
   1,265,805 : 1,690,902 = 1,690,902 : x
2. Step 2: Convert to fraction form
   1,265,805/1,690,902 = 1,690,902/x
3. Step 3: Cross multiply
   1,265,805x = 1,690,902 × 1,690,902
4. Step 4: Simplify right side
   1,265,805x = 2,859,149,573,604
5. Step 5: Solve for x
   x = 2,859,149,573,604/1,265,805
6. Step 6: Final answer
   x = 2,258,759.90