Finding the Third Proportional to 45,678 and 61,104

Step by Step Solution

1. Step 1: Write the proportion equation
   45,678 : 61,104 = 61,104 : x
2. Step 2: Convert to fraction form
   45,678/61,104 = 61,104/x
3. Step 3: Cross multiply
   45,678x = 61,104 × 61,104
4. Step 4: Simplify right side
   45,678x = 3,733,698,816
5. Step 5: Solve for x
   x = 3,733,698,816/45,678
6. Step 6: Final answer
   x = 81,739.54