Finding the Third Proportional to 543,748.50 and 818,766

Step by Step Solution

1. Step 1: Write the proportion equation
   543,748.50 : 818,766 = 818,766 : x
2. Step 2: Convert to fraction form
   543,748.50/818,766 = 818,766/x
3. Step 3: Cross multiply
   543,748.50x = 818,766 × 818,766
4. Step 4: Simplify right side
   543,748.50x = 670,377,762,756
5. Step 5: Solve for x
   x = 670,377,762,756/543,748.50
6. Step 6: Final answer
   x = 1,232,882.05