Finding the Third Proportional to 419,520,123 and 635,103,436.50

Step by Step Solution

1. Step 1: Write the proportion equation
   419,520,123 : 635,103,436.50 = 635,103,436.50 : x
2. Step 2: Convert to fraction form
   419,520,123/635,103,436.50 = 635,103,436.50/x
3. Step 3: Cross multiply
   419,520,123x = 635,103,436.50 × 635,103,436.50
4. Step 4: Simplify right side
   419,520,123x = 403,356,375,054,109,504
5. Step 5: Solve for x
   x = 403,356,375,054,109,504/419,520,123
6. Step 6: Final answer
   x = 961,470,863.83