Finding the Third Proportional to 404,442 and 634,396.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,442 : 634,396.50 = 634,396.50 : x
2. Step 2: Convert to fraction form
   404,442/634,396.50 = 634,396.50/x
3. Step 3: Cross multiply
   404,442x = 634,396.50 × 634,396.50
4. Step 4: Simplify right side
   404,442x = 402,458,919,212.25
5. Step 5: Solve for x
   x = 402,458,919,212.25/404,442
6. Step 6: Final answer
   x = 995,096.75