Finding the Third Proportional to 72,642 and 108,958

Step by Step Solution

1. Step 1: Write the proportion equation
   72,642 : 108,958 = 108,958 : x
2. Step 2: Convert to fraction form
   72,642/108,958 = 108,958/x
3. Step 3: Cross multiply
   72,642x = 108,958 × 108,958
4. Step 4: Simplify right side
   72,642x = 11,871,845,764
5. Step 5: Solve for x
   x = 11,871,845,764/72,642
6. Step 6: Final answer
   x = 163,429.50