Finding the Third Proportional to 144,408 and 322,020.75

Step by Step Solution

1. Step 1: Write the proportion equation
   144,408 : 322,020.75 = 322,020.75 : x
2. Step 2: Convert to fraction form
   144,408/322,020.75 = 322,020.75/x
3. Step 3: Cross multiply
   144,408x = 322,020.75 × 322,020.75
4. Step 4: Simplify right side
   144,408x = 103,697,363,430.56
5. Step 5: Solve for x
   x = 103,697,363,430.56/144,408
6. Step 6: Final answer
   x = 718,086.00