Finding the Third Proportional to 1,419,454 and 2,128,659

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419,454 : 2,128,659 = 2,128,659 : x
2. Step 2: Convert to fraction form
   1,419,454/2,128,659 = 2,128,659/x
3. Step 3: Cross multiply
   1,419,454x = 2,128,659 × 2,128,659
4. Step 4: Simplify right side
   1,419,454x = 4,531,189,138,281
5. Step 5: Solve for x
   x = 4,531,189,138,281/1,419,454
6. Step 6: Final answer
   x = 3,192,205.69