Finding the Third Proportional to 1,428,309 and 2,974,986

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428,309 : 2,974,986 = 2,974,986 : x
2. Step 2: Convert to fraction form
   1,428,309/2,974,986 = 2,974,986/x
3. Step 3: Cross multiply
   1,428,309x = 2,974,986 × 2,974,986
4. Step 4: Simplify right side
   1,428,309x = 8,850,541,700,196
5. Step 5: Solve for x
   x = 8,850,541,700,196/1,428,309
6. Step 6: Final answer
   x = 6,196,517.49