Finding the Third Proportional to 28,703 and 60,821

Step by Step Solution

1. Step 1: Write the proportion equation
   28,703 : 60,821 = 60,821 : x
2. Step 2: Convert to fraction form
   28,703/60,821 = 60,821/x
3. Step 3: Cross multiply
   28,703x = 60,821 × 60,821
4. Step 4: Simplify right side
   28,703x = 3,699,194,041
5. Step 5: Solve for x
   x = 3,699,194,041/28,703
6. Step 6: Final answer
   x = 128,878.31