Finding the Third Proportional to 222,576 and 525,078

Step by Step Solution

1. Step 1: Write the proportion equation
   222,576 : 525,078 = 525,078 : x
2. Step 2: Convert to fraction form
   222,576/525,078 = 525,078/x
3. Step 3: Cross multiply
   222,576x = 525,078 × 525,078
4. Step 4: Simplify right side
   222,576x = 275,706,906,084
5. Step 5: Solve for x
   x = 275,706,906,084/222,576
6. Step 6: Final answer
   x = 1,238,709.05