Finding the Third Proportional to 17,630 and 42,617

Step by Step Solution

1. Step 1: Write the proportion equation
   17,630 : 42,617 = 42,617 : x
2. Step 2: Convert to fraction form
   17,630/42,617 = 42,617/x
3. Step 3: Cross multiply
   17,630x = 42,617 × 42,617
4. Step 4: Simplify right side
   17,630x = 1,816,208,689
5. Step 5: Solve for x
   x = 1,816,208,689/17,630
6. Step 6: Final answer
   x = 103,018.08