Finding the Third Proportional to 440,523 and 635,989.50

Step by Step Solution

1. Step 1: Write the proportion equation
   440,523 : 635,989.50 = 635,989.50 : x
2. Step 2: Convert to fraction form
   440,523/635,989.50 = 635,989.50/x
3. Step 3: Cross multiply
   440,523x = 635,989.50 × 635,989.50
4. Step 4: Simplify right side
   440,523x = 404,482,644,110.25
5. Step 5: Solve for x
   x = 404,482,644,110.25/440,523
6. Step 6: Final answer
   x = 918,187.35