Finding the Third Proportional to 172,892 and 369,736

Step by Step Solution

1. Step 1: Write the proportion equation
   172,892 : 369,736 = 369,736 : x
2. Step 2: Convert to fraction form
   172,892/369,736 = 369,736/x
3. Step 3: Cross multiply
   172,892x = 369,736 × 369,736
4. Step 4: Simplify right side
   172,892x = 136,704,709,696
5. Step 5: Solve for x
   x = 136,704,709,696/172,892
6. Step 6: Final answer
   x = 790,694.25