Finding the Third Proportional to 69,858 and 142,944

Step by Step Solution

1. Step 1: Write the proportion equation
   69,858 : 142,944 = 142,944 : x
2. Step 2: Convert to fraction form
   69,858/142,944 = 142,944/x
3. Step 3: Cross multiply
   69,858x = 142,944 × 142,944
4. Step 4: Simplify right side
   69,858x = 20,432,987,136
5. Step 5: Solve for x
   x = 20,432,987,136/69,858
6. Step 6: Final answer
   x = 292,493.16