Finding the Third Proportional to 2,171,484 and 2,855,478

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171,484 : 2,855,478 = 2,855,478 : x
2. Step 2: Convert to fraction form
   2,171,484/2,855,478 = 2,855,478/x
3. Step 3: Cross multiply
   2,171,484x = 2,855,478 × 2,855,478
4. Step 4: Simplify right side
   2,171,484x = 8,153,754,608,484
5. Step 5: Solve for x
   x = 8,153,754,608,484/2,171,484
6. Step 6: Final answer
   x = 3,754,922.72