Finding the Third Proportional to 354,466.50 and 764,589

Step by Step Solution

1. Step 1: Write the proportion equation
   354,466.50 : 764,589 = 764,589 : x
2. Step 2: Convert to fraction form
   354,466.50/764,589 = 764,589/x
3. Step 3: Cross multiply
   354,466.50x = 764,589 × 764,589
4. Step 4: Simplify right side
   354,466.50x = 584,596,338,921
5. Step 5: Solve for x
   x = 584,596,338,921/354,466.50
6. Step 6: Final answer
   x = 1,649,228.74