Finding the Third Proportional to 143,023.50 and 308,529

Step by Step Solution

1. Step 1: Write the proportion equation
   143,023.50 : 308,529 = 308,529 : x
2. Step 2: Convert to fraction form
   143,023.50/308,529 = 308,529/x
3. Step 3: Cross multiply
   143,023.50x = 308,529 × 308,529
4. Step 4: Simplify right side
   143,023.50x = 95,190,143,841
5. Step 5: Solve for x
   x = 95,190,143,841/143,023.50
6. Step 6: Final answer
   x = 665,555.97