Finding the Third Proportional to 12,152 and 16,155

Step by Step Solution

1. Step 1: Write the proportion equation
   12,152 : 16,155 = 16,155 : x
2. Step 2: Convert to fraction form
   12,152/16,155 = 16,155/x
3. Step 3: Cross multiply
   12,152x = 16,155 × 16,155
4. Step 4: Simplify right side
   12,152x = 260,984,025
5. Step 5: Solve for x
   x = 260,984,025/12,152
6. Step 6: Final answer
   x = 21,476.63