Finding the Third Proportional to 30,731.91 and 55,540.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,731.91 : 55,540.69 = 55,540.69 : x
2. Step 2: Convert to fraction form
   30,731.91/55,540.69 = 55,540.69/x
3. Step 3: Cross multiply
   30,731.91x = 55,540.69 × 55,540.69
4. Step 4: Simplify right side
   30,731.91x = 3,084,767,967.97
5. Step 5: Solve for x
   x = 3,084,767,967.97/30,731.91
6. Step 6: Final answer
   x = 100,376.72