Finding the Third Proportional to 15,674.50 and 21,972.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,674.50 : 21,972.50 = 21,972.50 : x
2. Step 2: Convert to fraction form
   15,674.50/21,972.50 = 21,972.50/x
3. Step 3: Cross multiply
   15,674.50x = 21,972.50 × 21,972.50
4. Step 4: Simplify right side
   15,674.50x = 482,790,756.25
5. Step 5: Solve for x
   x = 482,790,756.25/15,674.50
6. Step 6: Final answer
   x = 30,801.03