Finding the Third Proportional to 2,172,718 and 3,192,485

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172,718 : 3,192,485 = 3,192,485 : x
2. Step 2: Convert to fraction form
   2,172,718/3,192,485 = 3,192,485/x
3. Step 3: Cross multiply
   2,172,718x = 3,192,485 × 3,192,485
4. Step 4: Simplify right side
   2,172,718x = 10,191,960,475,225
5. Step 5: Solve for x
   x = 10,191,960,475,225/2,172,718
6. Step 6: Final answer
   x = 4,690,880.49