Finding the Third Proportional to 34,279 and 76,435

Step by Step Solution

1. Step 1: Write the proportion equation
   34,279 : 76,435 = 76,435 : x
2. Step 2: Convert to fraction form
   34,279/76,435 = 76,435/x
3. Step 3: Cross multiply
   34,279x = 76,435 × 76,435
4. Step 4: Simplify right side
   34,279x = 5,842,309,225
5. Step 5: Solve for x
   x = 5,842,309,225/34,279
6. Step 6: Final answer
   x = 170,434.06