Finding the Third Proportional to 7,218 and 15,003

Step by Step Solution

1. Step 1: Write the proportion equation
   7,218 : 15,003 = 15,003 : x
2. Step 2: Convert to fraction form
   7,218/15,003 = 15,003/x
3. Step 3: Cross multiply
   7,218x = 15,003 × 15,003
4. Step 4: Simplify right side
   7,218x = 225,090,009
5. Step 5: Solve for x
   x = 225,090,009/7,218
6. Step 6: Final answer
   x = 31,184.54