Finding the Third Proportional to 444,123 and 628,681.50

Step by Step Solution

1. Step 1: Write the proportion equation
   444,123 : 628,681.50 = 628,681.50 : x
2. Step 2: Convert to fraction form
   444,123/628,681.50 = 628,681.50/x
3. Step 3: Cross multiply
   444,123x = 628,681.50 × 628,681.50
4. Step 4: Simplify right side
   444,123x = 395,240,428,442.25
5. Step 5: Solve for x
   x = 395,240,428,442.25/444,123
6. Step 6: Final answer
   x = 889,934.61