Finding the Third Proportional to 68,167.50 and 145,812

Step by Step Solution

1. Step 1: Write the proportion equation
   68,167.50 : 145,812 = 145,812 : x
2. Step 2: Convert to fraction form
   68,167.50/145,812 = 145,812/x
3. Step 3: Cross multiply
   68,167.50x = 145,812 × 145,812
4. Step 4: Simplify right side
   68,167.50x = 21,261,139,344
5. Step 5: Solve for x
   x = 21,261,139,344/68,167.50
6. Step 6: Final answer
   x = 311,895.54