Finding the Third Proportional to 238,016.50 and 515,216

Step by Step Solution

1. Step 1: Write the proportion equation
   238,016.50 : 515,216 = 515,216 : x
2. Step 2: Convert to fraction form
   238,016.50/515,216 = 515,216/x
3. Step 3: Cross multiply
   238,016.50x = 515,216 × 515,216
4. Step 4: Simplify right side
   238,016.50x = 265,447,526,656
5. Step 5: Solve for x
   x = 265,447,526,656/238,016.50
6. Step 6: Final answer
   x = 1,115,248.42