Finding the Third Proportional to 34,128 and 70,608

Step by Step Solution

1. Step 1: Write the proportion equation
   34,128 : 70,608 = 70,608 : x
2. Step 2: Convert to fraction form
   34,128/70,608 = 70,608/x
3. Step 3: Cross multiply
   34,128x = 70,608 × 70,608
4. Step 4: Simplify right side
   34,128x = 4,985,489,664
5. Step 5: Solve for x
   x = 4,985,489,664/34,128
6. Step 6: Final answer
   x = 146,082.09