Finding the Third Proportional to 354,198.50 and 764,369

Step by Step Solution

1. Step 1: Write the proportion equation
   354,198.50 : 764,369 = 764,369 : x
2. Step 2: Convert to fraction form
   354,198.50/764,369 = 764,369/x
3. Step 3: Cross multiply
   354,198.50x = 764,369 × 764,369
4. Step 4: Simplify right side
   354,198.50x = 584,259,968,161
5. Step 5: Solve for x
   x = 584,259,968,161/354,198.50
6. Step 6: Final answer
   x = 1,649,526.94