Finding the Third Proportional to 1,992,742 and 3,172,387

Step by Step Solution

1. Step 1: Write the proportion equation
   1,992,742 : 3,172,387 = 3,172,387 : x
2. Step 2: Convert to fraction form
   1,992,742/3,172,387 = 3,172,387/x
3. Step 3: Cross multiply
   1,992,742x = 3,172,387 × 3,172,387
4. Step 4: Simplify right side
   1,992,742x = 10,064,039,277,769
5. Step 5: Solve for x
   x = 10,064,039,277,769/1,992,742
6. Step 6: Final answer
   x = 5,050,347.35