Finding the Third Proportional to 72,028.50 and 105,274

Step by Step Solution

1. Step 1: Write the proportion equation
   72,028.50 : 105,274 = 105,274 : x
2. Step 2: Convert to fraction form
   72,028.50/105,274 = 105,274/x
3. Step 3: Cross multiply
   72,028.50x = 105,274 × 105,274
4. Step 4: Simplify right side
   72,028.50x = 11,082,615,076
5. Step 5: Solve for x
   x = 11,082,615,076/72,028.50
6. Step 6: Final answer
   x = 153,864.30