Finding the Third Proportional to 906,928 and 1,979,642

Step by Step Solution

1. Step 1: Write the proportion equation
   906,928 : 1,979,642 = 1,979,642 : x
2. Step 2: Convert to fraction form
   906,928/1,979,642 = 1,979,642/x
3. Step 3: Cross multiply
   906,928x = 1,979,642 × 1,979,642
4. Step 4: Simplify right side
   906,928x = 3,918,982,448,164
5. Step 5: Solve for x
   x = 3,918,982,448,164/906,928
6. Step 6: Final answer
   x = 4,321,161.60