Finding the Third Proportional to 15,306 and 21,664.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,306 : 21,664.50 = 21,664.50 : x
2. Step 2: Convert to fraction form
   15,306/21,664.50 = 21,664.50/x
3. Step 3: Cross multiply
   15,306x = 21,664.50 × 21,664.50
4. Step 4: Simplify right side
   15,306x = 469,350,560.25
5. Step 5: Solve for x
   x = 469,350,560.25/15,306
6. Step 6: Final answer
   x = 30,664.48