Finding the Third Proportional to 17,100 and 42,171.75

Step by Step Solution

1. Step 1: Write the proportion equation
   17,100 : 42,171.75 = 42,171.75 : x
2. Step 2: Convert to fraction form
   17,100/42,171.75 = 42,171.75/x
3. Step 3: Cross multiply
   17,100x = 42,171.75 × 42,171.75
4. Step 4: Simplify right side
   17,100x = 1,778,456,498.06
5. Step 5: Solve for x
   x = 1,778,456,498.06/17,100
6. Step 6: Final answer
   x = 104,003.30