Finding the Third Proportional to 1,670,419 and 2,605,456

Step by Step Solution

1. Step 1: Write the proportion equation
   1,670,419 : 2,605,456 = 2,605,456 : x
2. Step 2: Convert to fraction form
   1,670,419/2,605,456 = 2,605,456/x
3. Step 3: Cross multiply
   1,670,419x = 2,605,456 × 2,605,456
4. Step 4: Simplify right side
   1,670,419x = 6,788,400,967,936
5. Step 5: Solve for x
   x = 6,788,400,967,936/1,670,419
6. Step 6: Final answer
   x = 4,063,891.14