Finding the Third Proportional to 233,442 and 521,316

Step by Step Solution

1. Step 1: Write the proportion equation
   233,442 : 521,316 = 521,316 : x
2. Step 2: Convert to fraction form
   233,442/521,316 = 521,316/x
3. Step 3: Cross multiply
   233,442x = 521,316 × 521,316
4. Step 4: Simplify right side
   233,442x = 271,770,371,856
5. Step 5: Solve for x
   x = 271,770,371,856/233,442
6. Step 6: Final answer
   x = 1,164,187.99