Finding the Third Proportional to 891,210 and 1,855,860

Step by Step Solution

1. Step 1: Write the proportion equation
   891,210 : 1,855,860 = 1,855,860 : x
2. Step 2: Convert to fraction form
   891,210/1,855,860 = 1,855,860/x
3. Step 3: Cross multiply
   891,210x = 1,855,860 × 1,855,860
4. Step 4: Simplify right side
   891,210x = 3,444,216,339,600
5. Step 5: Solve for x
   x = 3,444,216,339,600/891,210
6. Step 6: Final answer
   x = 3,864,651.81