Finding the Third Proportional to 2,015,880 and 3,121,323

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015,880 : 3,121,323 = 3,121,323 : x
2. Step 2: Convert to fraction form
   2,015,880/3,121,323 = 3,121,323/x
3. Step 3: Cross multiply
   2,015,880x = 3,121,323 × 3,121,323
4. Step 4: Simplify right side
   2,015,880x = 9,742,657,270,329
5. Step 5: Solve for x
   x = 9,742,657,270,329/2,015,880
6. Step 6: Final answer
   x = 4,832,954.97