Finding the Third Proportional to 28,415 and 42,622

Step by Step Solution

1. Step 1: Write the proportion equation
   28,415 : 42,622 = 42,622 : x
2. Step 2: Convert to fraction form
   28,415/42,622 = 42,622/x
3. Step 3: Cross multiply
   28,415x = 42,622 × 42,622
4. Step 4: Simplify right side
   28,415x = 1,816,634,884
5. Step 5: Solve for x
   x = 1,816,634,884/28,415
6. Step 6: Final answer
   x = 63,932.25