Finding the Third Proportional to 104,439 and 214,408.50

Step by Step Solution

1. Step 1: Write the proportion equation
   104,439 : 214,408.50 = 214,408.50 : x
2. Step 2: Convert to fraction form
   104,439/214,408.50 = 214,408.50/x
3. Step 3: Cross multiply
   104,439x = 214,408.50 × 214,408.50
4. Step 4: Simplify right side
   104,439x = 45,971,004,872.25
5. Step 5: Solve for x
   x = 45,971,004,872.25/104,439
6. Step 6: Final answer
   x = 440,170.86