Finding the Third Proportional to 15,316 and 21,947

Step by Step Solution

1. Step 1: Write the proportion equation
   15,316 : 21,947 = 21,947 : x
2. Step 2: Convert to fraction form
   15,316/21,947 = 21,947/x
3. Step 3: Cross multiply
   15,316x = 21,947 × 21,947
4. Step 4: Simplify right side
   15,316x = 481,670,809
5. Step 5: Solve for x
   x = 481,670,809/15,316
6. Step 6: Final answer
   x = 31,448.86