Finding the Third Proportional to 542,554 and 1,178,510

Step by Step Solution

1. Step 1: Write the proportion equation
   542,554 : 1,178,510 = 1,178,510 : x
2. Step 2: Convert to fraction form
   542,554/1,178,510 = 1,178,510/x
3. Step 3: Cross multiply
   542,554x = 1,178,510 × 1,178,510
4. Step 4: Simplify right side
   542,554x = 1,388,885,820,100
5. Step 5: Solve for x
   x = 1,388,885,820,100/542,554
6. Step 6: Final answer
   x = 2,559,903.38