Finding the Third Proportional to 9,172 and 19,748

Step by Step Solution

1. Step 1: Write the proportion equation
   9,172 : 19,748 = 19,748 : x
2. Step 2: Convert to fraction form
   9,172/19,748 = 19,748/x
3. Step 3: Cross multiply
   9,172x = 19,748 × 19,748
4. Step 4: Simplify right side
   9,172x = 389,983,504
5. Step 5: Solve for x
   x = 389,983,504/9,172
6. Step 6: Final answer
   x = 42,518.92