Finding the Third Proportional to 2,172,644 and 3,192,438

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172,644 : 3,192,438 = 3,192,438 : x
2. Step 2: Convert to fraction form
   2,172,644/3,192,438 = 3,192,438/x
3. Step 3: Cross multiply
   2,172,644x = 3,192,438 × 3,192,438
4. Step 4: Simplify right side
   2,172,644x = 10,191,660,383,844
5. Step 5: Solve for x
   x = 10,191,660,383,844/2,172,644
6. Step 6: Final answer
   x = 4,690,902.14