Finding the Third Proportional to 90,781 and 144,417

Step by Step Solution

1. Step 1: Write the proportion equation
   90,781 : 144,417 = 144,417 : x
2. Step 2: Convert to fraction form
   90,781/144,417 = 144,417/x
3. Step 3: Cross multiply
   90,781x = 144,417 × 144,417
4. Step 4: Simplify right side
   90,781x = 20,856,269,889
5. Step 5: Solve for x
   x = 20,856,269,889/90,781
6. Step 6: Final answer
   x = 229,742.68