Finding the Third Proportional to 1,428,492 and 2,161,170

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428,492 : 2,161,170 = 2,161,170 : x
2. Step 2: Convert to fraction form
   1,428,492/2,161,170 = 2,161,170/x
3. Step 3: Cross multiply
   1,428,492x = 2,161,170 × 2,161,170
4. Step 4: Simplify right side
   1,428,492x = 4,670,655,768,900
5. Step 5: Solve for x
   x = 4,670,655,768,900/1,428,492
6. Step 6: Final answer
   x = 3,269,640.83