Finding the Third Proportional to 15,412.78 and 33,680.81

Step by Step Solution

1. Step 1: Write the proportion equation
   15,412.78 : 33,680.81 = 33,680.81 : x
2. Step 2: Convert to fraction form
   15,412.78/33,680.81 = 33,680.81/x
3. Step 3: Cross multiply
   15,412.78x = 33,680.81 × 33,680.81
4. Step 4: Simplify right side
   15,412.78x = 1,134,397,130.66
5. Step 5: Solve for x
   x = 1,134,397,130.66/15,412.78
6. Step 6: Final answer
   x = 73,601.07