Finding the Third Proportional to 1,428,482 and 2,161,155

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428,482 : 2,161,155 = 2,161,155 : x
2. Step 2: Convert to fraction form
   1,428,482/2,161,155 = 2,161,155/x
3. Step 3: Cross multiply
   1,428,482x = 2,161,155 × 2,161,155
4. Step 4: Simplify right side
   1,428,482x = 4,670,590,934,025
5. Step 5: Solve for x
   x = 4,670,590,934,025/1,428,482
6. Step 6: Final answer
   x = 3,269,618.33