Finding the Third Proportional to 284,975 and 443,018.50

Step by Step Solution

1. Step 1: Write the proportion equation
   284,975 : 443,018.50 = 443,018.50 : x
2. Step 2: Convert to fraction form
   284,975/443,018.50 = 443,018.50/x
3. Step 3: Cross multiply
   284,975x = 443,018.50 × 443,018.50
4. Step 4: Simplify right side
   284,975x = 196,265,391,342.25
5. Step 5: Solve for x
   x = 196,265,391,342.25/284,975
6. Step 6: Final answer
   x = 688,710.91