Finding the Third Proportional to 28,748 and 42,005

Step by Step Solution

1. Step 1: Write the proportion equation
   28,748 : 42,005 = 42,005 : x
2. Step 2: Convert to fraction form
   28,748/42,005 = 42,005/x
3. Step 3: Cross multiply
   28,748x = 42,005 × 42,005
4. Step 4: Simplify right side
   28,748x = 1,764,420,025
5. Step 5: Solve for x
   x = 1,764,420,025/28,748
6. Step 6: Final answer
   x = 61,375.40