Finding the Third Proportional to 294,223.50 and 628,905

Step by Step Solution

1. Step 1: Write the proportion equation
   294,223.50 : 628,905 = 628,905 : x
2. Step 2: Convert to fraction form
   294,223.50/628,905 = 628,905/x
3. Step 3: Cross multiply
   294,223.50x = 628,905 × 628,905
4. Step 4: Simplify right side
   294,223.50x = 395,521,499,025
5. Step 5: Solve for x
   x = 395,521,499,025/294,223.50
6. Step 6: Final answer
   x = 1,344,289.29