Finding the Third Proportional to 1,312,515 and 2,056,266

Step by Step Solution

1. Step 1: Write the proportion equation
   1,312,515 : 2,056,266 = 2,056,266 : x
2. Step 2: Convert to fraction form
   1,312,515/2,056,266 = 2,056,266/x
3. Step 3: Cross multiply
   1,312,515x = 2,056,266 × 2,056,266
4. Step 4: Simplify right side
   1,312,515x = 4,228,229,862,756
5. Step 5: Solve for x
   x = 4,228,229,862,756/1,312,515
6. Step 6: Final answer
   x = 3,221,471.65