Finding the Third Proportional to 11,816 and 15,308

Step by Step Solution

1. Step 1: Write the proportion equation
   11,816 : 15,308 = 15,308 : x
2. Step 2: Convert to fraction form
   11,816/15,308 = 15,308/x
3. Step 3: Cross multiply
   11,816x = 15,308 × 15,308
4. Step 4: Simplify right side
   11,816x = 234,334,864
5. Step 5: Solve for x
   x = 234,334,864/11,816
6. Step 6: Final answer
   x = 19,832.00