Finding the Third Proportional to 542,626 and 1,178,665

Step by Step Solution

1. Step 1: Write the proportion equation
   542,626 : 1,178,665 = 1,178,665 : x
2. Step 2: Convert to fraction form
   542,626/1,178,665 = 1,178,665/x
3. Step 3: Cross multiply
   542,626x = 1,178,665 × 1,178,665
4. Step 4: Simplify right side
   542,626x = 1,389,251,182,225
5. Step 5: Solve for x
   x = 1,389,251,182,225/542,626
6. Step 6: Final answer
   x = 2,560,237.04