Finding the Third Proportional to 2,906,164 and 3,989,372

Step by Step Solution

1. Step 1: Write the proportion equation
   2,906,164 : 3,989,372 = 3,989,372 : x
2. Step 2: Convert to fraction form
   2,906,164/3,989,372 = 3,989,372/x
3. Step 3: Cross multiply
   2,906,164x = 3,989,372 × 3,989,372
4. Step 4: Simplify right side
   2,906,164x = 15,915,088,954,384
5. Step 5: Solve for x
   x = 15,915,088,954,384/2,906,164
6. Step 6: Final answer
   x = 5,476,321.69