Finding the Third Proportional to 73,404 and 80,208

Step by Step Solution

1. Step 1: Write the proportion equation
   73,404 : 80,208 = 80,208 : x
2. Step 2: Convert to fraction form
   73,404/80,208 = 80,208/x
3. Step 3: Cross multiply
   73,404x = 80,208 × 80,208
4. Step 4: Simplify right side
   73,404x = 6,433,323,264
5. Step 5: Solve for x
   x = 6,433,323,264/73,404
6. Step 6: Final answer
   x = 87,642.68