Finding the Third Proportional to 2,015,887 and 3,121,336

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015,887 : 3,121,336 = 3,121,336 : x
2. Step 2: Convert to fraction form
   2,015,887/3,121,336 = 3,121,336/x
3. Step 3: Cross multiply
   2,015,887x = 3,121,336 × 3,121,336
4. Step 4: Simplify right side
   2,015,887x = 9,742,738,424,896
5. Step 5: Solve for x
   x = 9,742,738,424,896/2,015,887
6. Step 6: Final answer
   x = 4,832,978.45