Finding the Third Proportional to 1,015,986 and 2,171,940

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015,986 : 2,171,940 = 2,171,940 : x
2. Step 2: Convert to fraction form
   1,015,986/2,171,940 = 2,171,940/x
3. Step 3: Cross multiply
   1,015,986x = 2,171,940 × 2,171,940
4. Step 4: Simplify right side
   1,015,986x = 4,717,323,363,600
5. Step 5: Solve for x
   x = 4,717,323,363,600/1,015,986
6. Step 6: Final answer
   x = 4,643,098.79