Finding the Third Proportional to 199,629 and 299,443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,629 : 299,443.50 = 299,443.50 : x
2. Step 2: Convert to fraction form
   199,629/299,443.50 = 299,443.50/x
3. Step 3: Cross multiply
   199,629x = 299,443.50 × 299,443.50
4. Step 4: Simplify right side
   199,629x = 89,666,409,692.25
5. Step 5: Solve for x
   x = 89,666,409,692.25/199,629
6. Step 6: Final answer
   x = 449,165.25