Finding the Third Proportional to 11,388 and 17,312.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,388 : 17,312.25 = 17,312.25 : x
2. Step 2: Convert to fraction form
   11,388/17,312.25 = 17,312.25/x
3. Step 3: Cross multiply
   11,388x = 17,312.25 × 17,312.25
4. Step 4: Simplify right side
   11,388x = 299,714,000.06
5. Step 5: Solve for x
   x = 299,714,000.06/11,388
6. Step 6: Final answer
   x = 26,318.41