Finding the Third Proportional to 296,763.50 and 628,840

Step by Step Solution

1. Step 1: Write the proportion equation
   296,763.50 : 628,840 = 628,840 : x
2. Step 2: Convert to fraction form
   296,763.50/628,840 = 628,840/x
3. Step 3: Cross multiply
   296,763.50x = 628,840 × 628,840
4. Step 4: Simplify right side
   296,763.50x = 395,439,745,600
5. Step 5: Solve for x
   x = 395,439,745,600/296,763.50
6. Step 6: Final answer
   x = 1,332,508.03