Finding the Third Proportional to 91,728 and 131,030

Step by Step Solution

1. Step 1: Write the proportion equation
   91,728 : 131,030 = 131,030 : x
2. Step 2: Convert to fraction form
   91,728/131,030 = 131,030/x
3. Step 3: Cross multiply
   91,728x = 131,030 × 131,030
4. Step 4: Simplify right side
   91,728x = 17,168,860,900
5. Step 5: Solve for x
   x = 17,168,860,900/91,728
6. Step 6: Final answer
   x = 187,171.43