Finding the Third Proportional to 15,642 and 32,578.88

Step by Step Solution

1. Step 1: Write the proportion equation
   15,642 : 32,578.88 = 32,578.88 : x
2. Step 2: Convert to fraction form
   15,642/32,578.88 = 32,578.88/x
3. Step 3: Cross multiply
   15,642x = 32,578.88 × 32,578.88
4. Step 4: Simplify right side
   15,642x = 1,061,383,096.27
5. Step 5: Solve for x
   x = 1,061,383,096.27/15,642
6. Step 6: Final answer
   x = 67,854.69