Finding the Third Proportional to 67,869.75 and 146,144.25

Step by Step Solution

1. Step 1: Write the proportion equation
   67,869.75 : 146,144.25 = 146,144.25 : x
2. Step 2: Convert to fraction form
   67,869.75/146,144.25 = 146,144.25/x
3. Step 3: Cross multiply
   67,869.75x = 146,144.25 × 146,144.25
4. Step 4: Simplify right side
   67,869.75x = 21,358,141,808.06
5. Step 5: Solve for x
   x = 21,358,141,808.06/67,869.75
6. Step 6: Final answer
   x = 314,693.10