Finding the Third Proportional to 353,191.50 and 763,245

Step by Step Solution

1. Step 1: Write the proportion equation
   353,191.50 : 763,245 = 763,245 : x
2. Step 2: Convert to fraction form
   353,191.50/763,245 = 763,245/x
3. Step 3: Cross multiply
   353,191.50x = 763,245 × 763,245
4. Step 4: Simplify right side
   353,191.50x = 582,542,930,025
5. Step 5: Solve for x
   x = 582,542,930,025/353,191.50
6. Step 6: Final answer
   x = 1,649,368.49