Finding the Third Proportional to 18,648 and 28,152

Step by Step Solution

1. Step 1: Write the proportion equation
   18,648 : 28,152 = 28,152 : x
2. Step 2: Convert to fraction form
   18,648/28,152 = 28,152/x
3. Step 3: Cross multiply
   18,648x = 28,152 × 28,152
4. Step 4: Simplify right side
   18,648x = 792,535,104
5. Step 5: Solve for x
   x = 792,535,104/18,648
6. Step 6: Final answer
   x = 42,499.74