Finding the Third Proportional to 548,300 and 1,222,670

Step by Step Solution

1. Step 1: Write the proportion equation
   548,300 : 1,222,670 = 1,222,670 : x
2. Step 2: Convert to fraction form
   548,300/1,222,670 = 1,222,670/x
3. Step 3: Cross multiply
   548,300x = 1,222,670 × 1,222,670
4. Step 4: Simplify right side
   548,300x = 1,494,921,928,900
5. Step 5: Solve for x
   x = 1,494,921,928,900/548,300
6. Step 6: Final answer
   x = 2,726,467.13