Finding the Third Proportional to 17,815 and 38,485

Step by Step Solution

1. Step 1: Write the proportion equation
   17,815 : 38,485 = 38,485 : x
2. Step 2: Convert to fraction form
   17,815/38,485 = 38,485/x
3. Step 3: Cross multiply
   17,815x = 38,485 × 38,485
4. Step 4: Simplify right side
   17,815x = 1,481,095,225
5. Step 5: Solve for x
   x = 1,481,095,225/17,815
6. Step 6: Final answer
   x = 83,137.54