Finding the Third Proportional to 249,442.50 and 443,481

Step by Step Solution

1. Step 1: Write the proportion equation
   249,442.50 : 443,481 = 443,481 : x
2. Step 2: Convert to fraction form
   249,442.50/443,481 = 443,481/x
3. Step 3: Cross multiply
   249,442.50x = 443,481 × 443,481
4. Step 4: Simplify right side
   249,442.50x = 196,675,397,361
5. Step 5: Solve for x
   x = 196,675,397,361/249,442.50
6. Step 6: Final answer
   x = 788,459.85