Finding the Third Proportional to 21,818 and 29,015

Step by Step Solution

1. Step 1: Write the proportion equation
   21,818 : 29,015 = 29,015 : x
2. Step 2: Convert to fraction form
   21,818/29,015 = 29,015/x
3. Step 3: Cross multiply
   21,818x = 29,015 × 29,015
4. Step 4: Simplify right side
   21,818x = 841,870,225
5. Step 5: Solve for x
   x = 841,870,225/21,818
6. Step 6: Final answer
   x = 38,586.04