Finding the Third Proportional to 50,718 and 74,642

Step by Step Solution

1. Step 1: Write the proportion equation
   50,718 : 74,642 = 74,642 : x
2. Step 2: Convert to fraction form
   50,718/74,642 = 74,642/x
3. Step 3: Cross multiply
   50,718x = 74,642 × 74,642
4. Step 4: Simplify right side
   50,718x = 5,571,428,164
5. Step 5: Solve for x
   x = 5,571,428,164/50,718
6. Step 6: Final answer
   x = 109,851.10