Finding the Third Proportional to 10,904.63 and 15,688.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,904.63 : 15,688.69 = 15,688.69 : x
2. Step 2: Convert to fraction form
   10,904.63/15,688.69 = 15,688.69/x
3. Step 3: Cross multiply
   10,904.63x = 15,688.69 × 15,688.69
4. Step 4: Simplify right side
   10,904.63x = 246,134,915.47
5. Step 5: Solve for x
   x = 246,134,915.47/10,904.63
6. Step 6: Final answer
   x = 22,571.61