Finding the Third Proportional to 1,284,686 and 2,766,688

Step by Step Solution

1. Step 1: Write the proportion equation
   1,284,686 : 2,766,688 = 2,766,688 : x
2. Step 2: Convert to fraction form
   1,284,686/2,766,688 = 2,766,688/x
3. Step 3: Cross multiply
   1,284,686x = 2,766,688 × 2,766,688
4. Step 4: Simplify right side
   1,284,686x = 7,654,562,489,344
5. Step 5: Solve for x
   x = 7,654,562,489,344/1,284,686
6. Step 6: Final answer
   x = 5,958,313.93