Finding the Third Proportional to 2,172,720 and 3,192,488

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172,720 : 3,192,488 = 3,192,488 : x
2. Step 2: Convert to fraction form
   2,172,720/3,192,488 = 3,192,488/x
3. Step 3: Cross multiply
   2,172,720x = 3,192,488 × 3,192,488
4. Step 4: Simplify right side
   2,172,720x = 10,191,979,630,144
5. Step 5: Solve for x
   x = 10,191,979,630,144/2,172,720
6. Step 6: Final answer
   x = 4,690,884.99