Finding the Third Proportional to 140,116 and 215,371

Step by Step Solution

1. Step 1: Write the proportion equation
   140,116 : 215,371 = 215,371 : x
2. Step 2: Convert to fraction form
   140,116/215,371 = 215,371/x
3. Step 3: Cross multiply
   140,116x = 215,371 × 215,371
4. Step 4: Simplify right side
   140,116x = 46,384,667,641
5. Step 5: Solve for x
   x = 46,384,667,641/140,116
6. Step 6: Final answer
   x = 331,044.76