Finding the Third Proportional to 238,569 and 520,005

Step by Step Solution

1. Step 1: Write the proportion equation
   238,569 : 520,005 = 520,005 : x
2. Step 2: Convert to fraction form
   238,569/520,005 = 520,005/x
3. Step 3: Cross multiply
   238,569x = 520,005 × 520,005
4. Step 4: Simplify right side
   238,569x = 270,405,200,025
5. Step 5: Solve for x
   x = 270,405,200,025/238,569
6. Step 6: Final answer
   x = 1,133,446.51