Finding the Third Proportional to 28,404 and 45,378

Step by Step Solution

1. Step 1: Write the proportion equation
   28,404 : 45,378 = 45,378 : x
2. Step 2: Convert to fraction form
   28,404/45,378 = 45,378/x
3. Step 3: Cross multiply
   28,404x = 45,378 × 45,378
4. Step 4: Simplify right side
   28,404x = 2,059,162,884
5. Step 5: Solve for x
   x = 2,059,162,884/28,404
6. Step 6: Final answer
   x = 72,495.52