Finding the Third Proportional to 54,155 and 80,783

Step by Step Solution

1. Step 1: Write the proportion equation
   54,155 : 80,783 = 80,783 : x
2. Step 2: Convert to fraction form
   54,155/80,783 = 80,783/x
3. Step 3: Cross multiply
   54,155x = 80,783 × 80,783
4. Step 4: Simplify right side
   54,155x = 6,525,893,089
5. Step 5: Solve for x
   x = 6,525,893,089/54,155
6. Step 6: Final answer
   x = 120,503.98