Finding the Third Proportional to 411,237 and 628,519.50

Step by Step Solution

1. Step 1: Write the proportion equation
   411,237 : 628,519.50 = 628,519.50 : x
2. Step 2: Convert to fraction form
   411,237/628,519.50 = 628,519.50/x
3. Step 3: Cross multiply
   411,237x = 628,519.50 × 628,519.50
4. Step 4: Simplify right side
   411,237x = 395,036,761,880.25
5. Step 5: Solve for x
   x = 395,036,761,880.25/411,237
6. Step 6: Final answer
   x = 960,606.08