Finding the Third Proportional to 67,243.50 and 146,316

Step by Step Solution

1. Step 1: Write the proportion equation
   67,243.50 : 146,316 = 146,316 : x
2. Step 2: Convert to fraction form
   67,243.50/146,316 = 146,316/x
3. Step 3: Cross multiply
   67,243.50x = 146,316 × 146,316
4. Step 4: Simplify right side
   67,243.50x = 21,408,371,856
5. Step 5: Solve for x
   x = 21,408,371,856/67,243.50
6. Step 6: Final answer
   x = 318,370.87