Finding the Third Proportional to 67,149 and 143,516.25

Step by Step Solution

1. Step 1: Write the proportion equation
   67,149 : 143,516.25 = 143,516.25 : x
2. Step 2: Convert to fraction form
   67,149/143,516.25 = 143,516.25/x
3. Step 3: Cross multiply
   67,149x = 143,516.25 × 143,516.25
4. Step 4: Simplify right side
   67,149x = 20,596,914,014.06
5. Step 5: Solve for x
   x = 20,596,914,014.06/67,149
6. Step 6: Final answer
   x = 306,734.49