Finding the Third Proportional to 172,796 and 359,383

Step by Step Solution

1. Step 1: Write the proportion equation
   172,796 : 359,383 = 359,383 : x
2. Step 2: Convert to fraction form
   172,796/359,383 = 359,383/x
3. Step 3: Cross multiply
   172,796x = 359,383 × 359,383
4. Step 4: Simplify right side
   172,796x = 129,156,140,689
5. Step 5: Solve for x
   x = 129,156,140,689/172,796
6. Step 6: Final answer
   x = 747,448.67