Finding the Third Proportional to 1,297,558 and 2,786,906

Step by Step Solution

1. Step 1: Write the proportion equation
   1,297,558 : 2,786,906 = 2,786,906 : x
2. Step 2: Convert to fraction form
   1,297,558/2,786,906 = 2,786,906/x
3. Step 3: Cross multiply
   1,297,558x = 2,786,906 × 2,786,906
4. Step 4: Simplify right side
   1,297,558x = 7,766,845,052,836
5. Step 5: Solve for x
   x = 7,766,845,052,836/1,297,558
6. Step 6: Final answer
   x = 5,985,740.18