Finding the Third Proportional to 143,970 and 215,982

Step by Step Solution

1. Step 1: Write the proportion equation
   143,970 : 215,982 = 215,982 : x
2. Step 2: Convert to fraction form
   143,970/215,982 = 215,982/x
3. Step 3: Cross multiply
   143,970x = 215,982 × 215,982
4. Step 4: Simplify right side
   143,970x = 46,648,224,324
5. Step 5: Solve for x
   x = 46,648,224,324/143,970
6. Step 6: Final answer
   x = 324,013.51