Finding the Third Proportional to 1,280,340 and 2,796,912

Step by Step Solution

1. Step 1: Write the proportion equation
   1,280,340 : 2,796,912 = 2,796,912 : x
2. Step 2: Convert to fraction form
   1,280,340/2,796,912 = 2,796,912/x
3. Step 3: Cross multiply
   1,280,340x = 2,796,912 × 2,796,912
4. Step 4: Simplify right side
   1,280,340x = 7,822,716,735,744
5. Step 5: Solve for x
   x = 7,822,716,735,744/1,280,340
6. Step 6: Final answer
   x = 6,109,874.51