Finding the Third Proportional to 12,156 and 19,100

Step by Step Solution

1. Step 1: Write the proportion equation
   12,156 : 19,100 = 19,100 : x
2. Step 2: Convert to fraction form
   12,156/19,100 = 19,100/x
3. Step 3: Cross multiply
   12,156x = 19,100 × 19,100
4. Step 4: Simplify right side
   12,156x = 364,810,000
5. Step 5: Solve for x
   x = 364,810,000/12,156
6. Step 6: Final answer
   x = 30,010.69