Finding the Third Proportional to 17,911 and 30,711

Step by Step Solution

1. Step 1: Write the proportion equation
   17,911 : 30,711 = 30,711 : x
2. Step 2: Convert to fraction form
   17,911/30,711 = 30,711/x
3. Step 3: Cross multiply
   17,911x = 30,711 × 30,711
4. Step 4: Simplify right side
   17,911x = 943,165,521
5. Step 5: Solve for x
   x = 943,165,521/17,911
6. Step 6: Final answer
   x = 52,658.45