Finding the Third Proportional to 1,265,840 and 1,690,950

Step by Step Solution

1. Step 1: Write the proportion equation
   1,265,840 : 1,690,950 = 1,690,950 : x
2. Step 2: Convert to fraction form
   1,265,840/1,690,950 = 1,690,950/x
3. Step 3: Cross multiply
   1,265,840x = 1,690,950 × 1,690,950
4. Step 4: Simplify right side
   1,265,840x = 2,859,311,902,500
5. Step 5: Solve for x
   x = 2,859,311,902,500/1,265,840
6. Step 6: Final answer
   x = 2,258,825.68