Finding the Third Proportional to 57,920.06 and 89,540.44

Step by Step Solution

1. Step 1: Write the proportion equation
   57,920.06 : 89,540.44 = 89,540.44 : x
2. Step 2: Convert to fraction form
   57,920.06/89,540.44 = 89,540.44/x
3. Step 3: Cross multiply
   57,920.06x = 89,540.44 × 89,540.44
4. Step 4: Simplify right side
   57,920.06x = 8,017,489,947.69
5. Step 5: Solve for x
   x = 8,017,489,947.69/57,920.06
6. Step 6: Final answer
   x = 138,423.36