Finding the Third Proportional to 21,955 and 53,065

Step by Step Solution

1. Step 1: Write the proportion equation
   21,955 : 53,065 = 53,065 : x
2. Step 2: Convert to fraction form
   21,955/53,065 = 53,065/x
3. Step 3: Cross multiply
   21,955x = 53,065 × 53,065
4. Step 4: Simplify right side
   21,955x = 2,815,894,225
5. Step 5: Solve for x
   x = 2,815,894,225/21,955
6. Step 6: Final answer
   x = 128,257.54