Finding the Third Proportional to 28,443 and 42,666

Step by Step Solution

1. Step 1: Write the proportion equation
   28,443 : 42,666 = 42,666 : x
2. Step 2: Convert to fraction form
   28,443/42,666 = 42,666/x
3. Step 3: Cross multiply
   28,443x = 42,666 × 42,666
4. Step 4: Simplify right side
   28,443x = 1,820,387,556
5. Step 5: Solve for x
   x = 1,820,387,556/28,443
6. Step 6: Final answer
   x = 64,001.25