Finding the Third Proportional to 21,318 and 34,056

Step by Step Solution

1. Step 1: Write the proportion equation
   21,318 : 34,056 = 34,056 : x
2. Step 2: Convert to fraction form
   21,318/34,056 = 34,056/x
3. Step 3: Cross multiply
   21,318x = 34,056 × 34,056
4. Step 4: Simplify right side
   21,318x = 1,159,811,136
5. Step 5: Solve for x
   x = 1,159,811,136/21,318
6. Step 6: Final answer
   x = 54,405.25