Finding the Third Proportional to 855,863 and 1,833,172

Step by Step Solution

1. Step 1: Write the proportion equation
   855,863 : 1,833,172 = 1,833,172 : x
2. Step 2: Convert to fraction form
   855,863/1,833,172 = 1,833,172/x
3. Step 3: Cross multiply
   855,863x = 1,833,172 × 1,833,172
4. Step 4: Simplify right side
   855,863x = 3,360,519,581,584
5. Step 5: Solve for x
   x = 3,360,519,581,584/855,863
6. Step 6: Final answer
   x = 3,926,469.05