Finding the Third Proportional to 69,344 and 141,976

Step by Step Solution

1. Step 1: Write the proportion equation
   69,344 : 141,976 = 141,976 : x
2. Step 2: Convert to fraction form
   69,344/141,976 = 141,976/x
3. Step 3: Cross multiply
   69,344x = 141,976 × 141,976
4. Step 4: Simplify right side
   69,344x = 20,157,184,576
5. Step 5: Solve for x
   x = 20,157,184,576/69,344
6. Step 6: Final answer
   x = 290,683.90