Finding the Third Proportional to 11,612 and 19,155

Step by Step Solution

1. Step 1: Write the proportion equation
   11,612 : 19,155 = 19,155 : x
2. Step 2: Convert to fraction form
   11,612/19,155 = 19,155/x
3. Step 3: Cross multiply
   11,612x = 19,155 × 19,155
4. Step 4: Simplify right side
   11,612x = 366,914,025
5. Step 5: Solve for x
   x = 366,914,025/11,612
6. Step 6: Final answer
   x = 31,597.83