Finding the Third Proportional to 86,671.27 and 137,524.71

Step by Step Solution

1. Step 1: Write the proportion equation
   86,671.27 : 137,524.71 = 137,524.71 : x
2. Step 2: Convert to fraction form
   86,671.27/137,524.71 = 137,524.71/x
3. Step 3: Cross multiply
   86,671.27x = 137,524.71 × 137,524.71
4. Step 4: Simplify right side
   86,671.27x = 18,913,046,118.44
5. Step 5: Solve for x
   x = 18,913,046,118.44/86,671.27
6. Step 6: Final answer
   x = 218,215.88