Finding the Third Proportional to 43,217 and 89,434

Step by Step Solution

1. Step 1: Write the proportion equation
   43,217 : 89,434 = 89,434 : x
2. Step 2: Convert to fraction form
   43,217/89,434 = 89,434/x
3. Step 3: Cross multiply
   43,217x = 89,434 × 89,434
4. Step 4: Simplify right side
   43,217x = 7,998,440,356
5. Step 5: Solve for x
   x = 7,998,440,356/43,217
6. Step 6: Final answer
   x = 185,076.25