Finding the Third Proportional to 28,621 and 42,074

Step by Step Solution

1. Step 1: Write the proportion equation
   28,621 : 42,074 = 42,074 : x
2. Step 2: Convert to fraction form
   28,621/42,074 = 42,074/x
3. Step 3: Cross multiply
   28,621x = 42,074 × 42,074
4. Step 4: Simplify right side
   28,621x = 1,770,221,476
5. Step 5: Solve for x
   x = 1,770,221,476/28,621
6. Step 6: Final answer
   x = 61,850.44