Finding the Third Proportional to 68,912.50 and 142,253

Step by Step Solution

1. Step 1: Write the proportion equation
   68,912.50 : 142,253 = 142,253 : x
2. Step 2: Convert to fraction form
   68,912.50/142,253 = 142,253/x
3. Step 3: Cross multiply
   68,912.50x = 142,253 × 142,253
4. Step 4: Simplify right side
   68,912.50x = 20,235,916,009
5. Step 5: Solve for x
   x = 20,235,916,009/68,912.50
6. Step 6: Final answer
   x = 293,646.52