Finding the Third Proportional to 1,247,781 and 2,554,686

Step by Step Solution

1. Step 1: Write the proportion equation
   1,247,781 : 2,554,686 = 2,554,686 : x
2. Step 2: Convert to fraction form
   1,247,781/2,554,686 = 2,554,686/x
3. Step 3: Cross multiply
   1,247,781x = 2,554,686 × 2,554,686
4. Step 4: Simplify right side
   1,247,781x = 6,526,420,558,596
5. Step 5: Solve for x
   x = 6,526,420,558,596/1,247,781
6. Step 6: Final answer
   x = 5,230,421.49