Finding the Third Proportional to 66,163.50 and 143,064

Step by Step Solution

1. Step 1: Write the proportion equation
   66,163.50 : 143,064 = 143,064 : x
2. Step 2: Convert to fraction form
   66,163.50/143,064 = 143,064/x
3. Step 3: Cross multiply
   66,163.50x = 143,064 × 143,064
4. Step 4: Simplify right side
   66,163.50x = 20,467,308,096
5. Step 5: Solve for x
   x = 20,467,308,096/66,163.50
6. Step 6: Final answer
   x = 309,344.40