Finding the Third Proportional to 27,709 and 57,390

Step by Step Solution

1. Step 1: Write the proportion equation
   27,709 : 57,390 = 57,390 : x
2. Step 2: Convert to fraction form
   27,709/57,390 = 57,390/x
3. Step 3: Cross multiply
   27,709x = 57,390 × 57,390
4. Step 4: Simplify right side
   27,709x = 3,293,612,100
5. Step 5: Solve for x
   x = 3,293,612,100/27,709
6. Step 6: Final answer
   x = 118,864.34