Finding the Third Proportional to 1,200,108 and 2,560,920

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,108 : 2,560,920 = 2,560,920 : x
2. Step 2: Convert to fraction form
   1,200,108/2,560,920 = 2,560,920/x
3. Step 3: Cross multiply
   1,200,108x = 2,560,920 × 2,560,920
4. Step 4: Simplify right side
   1,200,108x = 6,558,311,246,400
5. Step 5: Solve for x
   x = 6,558,311,246,400/1,200,108
6. Step 6: Final answer
   x = 5,464,767.54