Finding the Third Proportional to 18,288 and 42,732

Step by Step Solution

1. Step 1: Write the proportion equation
   18,288 : 42,732 = 42,732 : x
2. Step 2: Convert to fraction form
   18,288/42,732 = 42,732/x
3. Step 3: Cross multiply
   18,288x = 42,732 × 42,732
4. Step 4: Simplify right side
   18,288x = 1,826,023,824
5. Step 5: Solve for x
   x = 1,826,023,824/18,288
6. Step 6: Final answer
   x = 99,848.20