Finding the Third Proportional to 2,686,673 and 5,676,586

Step by Step Solution

1. Step 1: Write the proportion equation
   2,686,673 : 5,676,586 = 5,676,586 : x
2. Step 2: Convert to fraction form
   2,686,673/5,676,586 = 5,676,586/x
3. Step 3: Cross multiply
   2,686,673x = 5,676,586 × 5,676,586
4. Step 4: Simplify right side
   2,686,673x = 32,223,628,615,396
5. Step 5: Solve for x
   x = 32,223,628,615,396/2,686,673
6. Step 6: Final answer
   x = 11,993,878.16