Finding the Third Proportional to 1,428,772 and 2,161,526

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428,772 : 2,161,526 = 2,161,526 : x
2. Step 2: Convert to fraction form
   1,428,772/2,161,526 = 2,161,526/x
3. Step 3: Cross multiply
   1,428,772x = 2,161,526 × 2,161,526
4. Step 4: Simplify right side
   1,428,772x = 4,672,194,648,676
5. Step 5: Solve for x
   x = 4,672,194,648,676/1,428,772
6. Step 6: Final answer
   x = 3,270,077.14