Finding the Third Proportional to 891,216 and 1,855,872

Step by Step Solution

1. Step 1: Write the proportion equation
   891,216 : 1,855,872 = 1,855,872 : x
2. Step 2: Convert to fraction form
   891,216/1,855,872 = 1,855,872/x
3. Step 3: Cross multiply
   891,216x = 1,855,872 × 1,855,872
4. Step 4: Simplify right side
   891,216x = 3,444,260,880,384
5. Step 5: Solve for x
   x = 3,444,260,880,384/891,216
6. Step 6: Final answer
   x = 3,864,675.77