Finding the Third Proportional to 1,340,642 and 2,922,286

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340,642 : 2,922,286 = 2,922,286 : x
2. Step 2: Convert to fraction form
   1,340,642/2,922,286 = 2,922,286/x
3. Step 3: Cross multiply
   1,340,642x = 2,922,286 × 2,922,286
4. Step 4: Simplify right side
   1,340,642x = 8,539,755,465,796
5. Step 5: Solve for x
   x = 8,539,755,465,796/1,340,642
6. Step 6: Final answer
   x = 6,369,899.99