Finding the Third Proportional to 172,260 and 369,426

Step by Step Solution

1. Step 1: Write the proportion equation
   172,260 : 369,426 = 369,426 : x
2. Step 2: Convert to fraction form
   172,260/369,426 = 369,426/x
3. Step 3: Cross multiply
   172,260x = 369,426 × 369,426
4. Step 4: Simplify right side
   172,260x = 136,475,569,476
5. Step 5: Solve for x
   x = 136,475,569,476/172,260
6. Step 6: Final answer
   x = 792,265.00