Finding the Third Proportional to 1,828,686 and 2,689,992

Step by Step Solution

1. Step 1: Write the proportion equation
   1,828,686 : 2,689,992 = 2,689,992 : x
2. Step 2: Convert to fraction form
   1,828,686/2,689,992 = 2,689,992/x
3. Step 3: Cross multiply
   1,828,686x = 2,689,992 × 2,689,992
4. Step 4: Simplify right side
   1,828,686x = 7,236,056,960,064
5. Step 5: Solve for x
   x = 7,236,056,960,064/1,828,686
6. Step 6: Final answer
   x = 3,956,970.72