Finding the Third Proportional to 1,216,996 and 1,891,870

Step by Step Solution

1. Step 1: Write the proportion equation
   1,216,996 : 1,891,870 = 1,891,870 : x
2. Step 2: Convert to fraction form
   1,216,996/1,891,870 = 1,891,870/x
3. Step 3: Cross multiply
   1,216,996x = 1,891,870 × 1,891,870
4. Step 4: Simplify right side
   1,216,996x = 3,579,172,096,900
5. Step 5: Solve for x
   x = 3,579,172,096,900/1,216,996
6. Step 6: Final answer
   x = 2,940,989.20