Finding the Third Proportional to 229,036.50 and 356,643

Step by Step Solution

1. Step 1: Write the proportion equation
   229,036.50 : 356,643 = 356,643 : x
2. Step 2: Convert to fraction form
   229,036.50/356,643 = 356,643/x
3. Step 3: Cross multiply
   229,036.50x = 356,643 × 356,643
4. Step 4: Simplify right side
   229,036.50x = 127,194,229,449
5. Step 5: Solve for x
   x = 127,194,229,449/229,036.50
6. Step 6: Final answer
   x = 555,344.80