Finding the Third Proportional to 1,366,617 and 2,990,634

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366,617 : 2,990,634 = 2,990,634 : x
2. Step 2: Convert to fraction form
   1,366,617/2,990,634 = 2,990,634/x
3. Step 3: Cross multiply
   1,366,617x = 2,990,634 × 2,990,634
4. Step 4: Simplify right side
   1,366,617x = 8,943,891,721,956
5. Step 5: Solve for x
   x = 8,943,891,721,956/1,366,617
6. Step 6: Final answer
   x = 6,544,548.85