Finding the Third Proportional to 21,888 and 30,159

Step by Step Solution

1. Step 1: Write the proportion equation
   21,888 : 30,159 = 30,159 : x
2. Step 2: Convert to fraction form
   21,888/30,159 = 30,159/x
3. Step 3: Cross multiply
   21,888x = 30,159 × 30,159
4. Step 4: Simplify right side
   21,888x = 909,565,281
5. Step 5: Solve for x
   x = 909,565,281/21,888
6. Step 6: Final answer
   x = 41,555.43