Finding the Third Proportional to 542,646 and 1,178,676

Step by Step Solution

1. Step 1: Write the proportion equation
   542,646 : 1,178,676 = 1,178,676 : x
2. Step 2: Convert to fraction form
   542,646/1,178,676 = 1,178,676/x
3. Step 3: Cross multiply
   542,646x = 1,178,676 × 1,178,676
4. Step 4: Simplify right side
   542,646x = 1,389,277,112,976
5. Step 5: Solve for x
   x = 1,389,277,112,976/542,646
6. Step 6: Final answer
   x = 2,560,190.46