Finding the Third Proportional to 1,428,760 and 2,161,508

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428,760 : 2,161,508 = 2,161,508 : x
2. Step 2: Convert to fraction form
   1,428,760/2,161,508 = 2,161,508/x
3. Step 3: Cross multiply
   1,428,760x = 2,161,508 × 2,161,508
4. Step 4: Simplify right side
   1,428,760x = 4,672,116,834,064
5. Step 5: Solve for x
   x = 4,672,116,834,064/1,428,760
6. Step 6: Final answer
   x = 3,270,050.14