Finding the Third Proportional to 182,436 and 392,040

Step by Step Solution

1. Step 1: Write the proportion equation
   182,436 : 392,040 = 392,040 : x
2. Step 2: Convert to fraction form
   182,436/392,040 = 392,040/x
3. Step 3: Cross multiply
   182,436x = 392,040 × 392,040
4. Step 4: Simplify right side
   182,436x = 153,695,361,600
5. Step 5: Solve for x
   x = 153,695,361,600/182,436
6. Step 6: Final answer
   x = 842,461.80