Finding the Third Proportional to 906,926 and 1,992,690

Step by Step Solution

1. Step 1: Write the proportion equation
   906,926 : 1,992,690 = 1,992,690 : x
2. Step 2: Convert to fraction form
   906,926/1,992,690 = 1,992,690/x
3. Step 3: Cross multiply
   906,926x = 1,992,690 × 1,992,690
4. Step 4: Simplify right side
   906,926x = 3,970,813,436,100
5. Step 5: Solve for x
   x = 3,970,813,436,100/906,926
6. Step 6: Final answer
   x = 4,378,321.31