Finding the Third Proportional to 1,328,486 and 2,114,912

Step by Step Solution

1. Step 1: Write the proportion equation
   1,328,486 : 2,114,912 = 2,114,912 : x
2. Step 2: Convert to fraction form
   1,328,486/2,114,912 = 2,114,912/x
3. Step 3: Cross multiply
   1,328,486x = 2,114,912 × 2,114,912
4. Step 4: Simplify right side
   1,328,486x = 4,472,852,767,744
5. Step 5: Solve for x
   x = 4,472,852,767,744/1,328,486
6. Step 6: Final answer
   x = 3,366,879.87