Finding the Third Proportional to 827,172 and 1,786,392

Step by Step Solution

1. Step 1: Write the proportion equation
   827,172 : 1,786,392 = 1,786,392 : x
2. Step 2: Convert to fraction form
   827,172/1,786,392 = 1,786,392/x
3. Step 3: Cross multiply
   827,172x = 1,786,392 × 1,786,392
4. Step 4: Simplify right side
   827,172x = 3,191,196,377,664
5. Step 5: Solve for x
   x = 3,191,196,377,664/827,172
6. Step 6: Final answer
   x = 3,857,959.87