Finding the Third Proportional to 857,440 and 1,828,766

Step by Step Solution

1. Step 1: Write the proportion equation
   857,440 : 1,828,766 = 1,828,766 : x
2. Step 2: Convert to fraction form
   857,440/1,828,766 = 1,828,766/x
3. Step 3: Cross multiply
   857,440x = 1,828,766 × 1,828,766
4. Step 4: Simplify right side
   857,440x = 3,344,385,082,756
5. Step 5: Solve for x
   x = 3,344,385,082,756/857,440
6. Step 6: Final answer
   x = 3,900,430.45