Finding the Third Proportional to 238,932 and 521,330

Step by Step Solution

1. Step 1: Write the proportion equation
   238,932 : 521,330 = 521,330 : x
2. Step 2: Convert to fraction form
   238,932/521,330 = 521,330/x
3. Step 3: Cross multiply
   238,932x = 521,330 × 521,330
4. Step 4: Simplify right side
   238,932x = 271,784,968,900
5. Step 5: Solve for x
   x = 271,784,968,900/238,932
6. Step 6: Final answer
   x = 1,137,499.24