Finding the Third Proportional to 906,388 and 1,906,088

Step by Step Solution

1. Step 1: Write the proportion equation
   906,388 : 1,906,088 = 1,906,088 : x
2. Step 2: Convert to fraction form
   906,388/1,906,088 = 1,906,088/x
3. Step 3: Cross multiply
   906,388x = 1,906,088 × 1,906,088
4. Step 4: Simplify right side
   906,388x = 3,633,171,463,744
5. Step 5: Solve for x
   x = 3,633,171,463,744/906,388
6. Step 6: Final answer
   x = 4,008,406.40