Finding the Third Proportional to 17,866 and 38,905

Step by Step Solution

1. Step 1: Write the proportion equation
   17,866 : 38,905 = 38,905 : x
2. Step 2: Convert to fraction form
   17,866/38,905 = 38,905/x
3. Step 3: Cross multiply
   17,866x = 38,905 × 38,905
4. Step 4: Simplify right side
   17,866x = 1,513,599,025
5. Step 5: Solve for x
   x = 1,513,599,025/17,866
6. Step 6: Final answer
   x = 84,719.52