Finding the Third Proportional to 65,628 and 143,284.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,628 : 143,284.50 = 143,284.50 : x
2. Step 2: Convert to fraction form
   65,628/143,284.50 = 143,284.50/x
3. Step 3: Cross multiply
   65,628x = 143,284.50 × 143,284.50
4. Step 4: Simplify right side
   65,628x = 20,530,447,940.25
5. Step 5: Solve for x
   x = 20,530,447,940.25/65,628
6. Step 6: Final answer
   x = 312,830.62