Finding the Third Proportional to 238,839 and 372,786

Step by Step Solution

1. Step 1: Write the proportion equation
   238,839 : 372,786 = 372,786 : x
2. Step 2: Convert to fraction form
   238,839/372,786 = 372,786/x
3. Step 3: Cross multiply
   238,839x = 372,786 × 372,786
4. Step 4: Simplify right side
   238,839x = 138,969,401,796
5. Step 5: Solve for x
   x = 138,969,401,796/238,839
6. Step 6: Final answer
   x = 581,853.89