Finding the Third Proportional to 245,622 and 538,008

Step by Step Solution

1. Step 1: Write the proportion equation
   245,622 : 538,008 = 538,008 : x
2. Step 2: Convert to fraction form
   245,622/538,008 = 538,008/x
3. Step 3: Cross multiply
   245,622x = 538,008 × 538,008
4. Step 4: Simplify right side
   245,622x = 289,452,608,064
5. Step 5: Solve for x
   x = 289,452,608,064/245,622
6. Step 6: Final answer
   x = 1,178,447.40