Finding the Third Proportional to 1,511,901 and 2,178,427

Step by Step Solution

1. Step 1: Write the proportion equation
   1,511,901 : 2,178,427 = 2,178,427 : x
2. Step 2: Convert to fraction form
   1,511,901/2,178,427 = 2,178,427/x
3. Step 3: Cross multiply
   1,511,901x = 2,178,427 × 2,178,427
4. Step 4: Simplify right side
   1,511,901x = 4,745,544,194,329
5. Step 5: Solve for x
   x = 4,745,544,194,329/1,511,901
6. Step 6: Final answer
   x = 3,138,792.95