Finding the Third Proportional to 38,789 and 80,068

Step by Step Solution

1. Step 1: Write the proportion equation
   38,789 : 80,068 = 80,068 : x
2. Step 2: Convert to fraction form
   38,789/80,068 = 80,068/x
3. Step 3: Cross multiply
   38,789x = 80,068 × 80,068
4. Step 4: Simplify right side
   38,789x = 6,410,884,624
5. Step 5: Solve for x
   x = 6,410,884,624/38,789
6. Step 6: Final answer
   x = 165,275.84