Finding the Third Proportional to 301,198.50 and 627,345

Step by Step Solution

1. Step 1: Write the proportion equation
   301,198.50 : 627,345 = 627,345 : x
2. Step 2: Convert to fraction form
   301,198.50/627,345 = 627,345/x
3. Step 3: Cross multiply
   301,198.50x = 627,345 × 627,345
4. Step 4: Simplify right side
   301,198.50x = 393,561,749,025
5. Step 5: Solve for x
   x = 393,561,749,025/301,198.50
6. Step 6: Final answer
   x = 1,306,652.42