Finding the Third Proportional to 69,330 and 141,945

Step by Step Solution

1. Step 1: Write the proportion equation
   69,330 : 141,945 = 141,945 : x
2. Step 2: Convert to fraction form
   69,330/141,945 = 141,945/x
3. Step 3: Cross multiply
   69,330x = 141,945 × 141,945
4. Step 4: Simplify right side
   69,330x = 20,148,383,025
5. Step 5: Solve for x
   x = 20,148,383,025/69,330
6. Step 6: Final answer
   x = 290,615.65