Finding the Third Proportional to 34,015 and 72,147

Step by Step Solution

1. Step 1: Write the proportion equation
   34,015 : 72,147 = 72,147 : x
2. Step 2: Convert to fraction form
   34,015/72,147 = 72,147/x
3. Step 3: Cross multiply
   34,015x = 72,147 × 72,147
4. Step 4: Simplify right side
   34,015x = 5,205,189,609
5. Step 5: Solve for x
   x = 5,205,189,609/34,015
6. Step 6: Final answer
   x = 153,026.30