Finding the Third Proportional to 19,716 and 42,560

Step by Step Solution

1. Step 1: Write the proportion equation
   19,716 : 42,560 = 42,560 : x
2. Step 2: Convert to fraction form
   19,716/42,560 = 42,560/x
3. Step 3: Cross multiply
   19,716x = 42,560 × 42,560
4. Step 4: Simplify right side
   19,716x = 1,811,353,600
5. Step 5: Solve for x
   x = 1,811,353,600/19,716
6. Step 6: Final answer
   x = 91,872.27