Finding the Third Proportional to 238,851 and 339,511.50

Step by Step Solution

1. Step 1: Write the proportion equation
   238,851 : 339,511.50 = 339,511.50 : x
2. Step 2: Convert to fraction form
   238,851/339,511.50 = 339,511.50/x
3. Step 3: Cross multiply
   238,851x = 339,511.50 × 339,511.50
4. Step 4: Simplify right side
   238,851x = 115,268,058,632.25
5. Step 5: Solve for x
   x = 115,268,058,632.25/238,851
6. Step 6: Final answer
   x = 482,594.00