Finding the Third Proportional to 172,582 and 369,160

Step by Step Solution

1. Step 1: Write the proportion equation
   172,582 : 369,160 = 369,160 : x
2. Step 2: Convert to fraction form
   172,582/369,160 = 369,160/x
3. Step 3: Cross multiply
   172,582x = 369,160 × 369,160
4. Step 4: Simplify right side
   172,582x = 136,279,105,600
5. Step 5: Solve for x
   x = 136,279,105,600/172,582
6. Step 6: Final answer
   x = 789,648.43