Finding the Third Proportional to 1,282,386 and 2,001,216

Step by Step Solution

1. Step 1: Write the proportion equation
   1,282,386 : 2,001,216 = 2,001,216 : x
2. Step 2: Convert to fraction form
   1,282,386/2,001,216 = 2,001,216/x
3. Step 3: Cross multiply
   1,282,386x = 2,001,216 × 2,001,216
4. Step 4: Simplify right side
   1,282,386x = 4,004,865,478,656
5. Step 5: Solve for x
   x = 4,004,865,478,656/1,282,386
6. Step 6: Final answer
   x = 3,122,979.73