Finding the Third Proportional to 9,154 and 21,653

Step by Step Solution

1. Step 1: Write the proportion equation
   9,154 : 21,653 = 21,653 : x
2. Step 2: Convert to fraction form
   9,154/21,653 = 21,653/x
3. Step 3: Cross multiply
   9,154x = 21,653 × 21,653
4. Step 4: Simplify right side
   9,154x = 468,852,409
5. Step 5: Solve for x
   x = 468,852,409/9,154
6. Step 6: Final answer
   x = 51,218.31