Finding the Third Proportional to 144,383 and 223,139

Step by Step Solution

1. Step 1: Write the proportion equation
   144,383 : 223,139 = 223,139 : x
2. Step 2: Convert to fraction form
   144,383/223,139 = 223,139/x
3. Step 3: Cross multiply
   144,383x = 223,139 × 223,139
4. Step 4: Simplify right side
   144,383x = 49,791,013,321
5. Step 5: Solve for x
   x = 49,791,013,321/144,383
6. Step 6: Final answer
   x = 344,853.71