Finding the Third Proportional to 28,728 and 42,066

Step by Step Solution

1. Step 1: Write the proportion equation
   28,728 : 42,066 = 42,066 : x
2. Step 2: Convert to fraction form
   28,728/42,066 = 42,066/x
3. Step 3: Cross multiply
   28,728x = 42,066 × 42,066
4. Step 4: Simplify right side
   28,728x = 1,769,548,356
5. Step 5: Solve for x
   x = 1,769,548,356/28,728
6. Step 6: Final answer
   x = 61,596.64