Finding the Third Proportional to 357,832.69 and 548,215.59

Step by Step Solution

1. Step 1: Write the proportion equation
   357,832.69 : 548,215.59 = 548,215.59 : x
2. Step 2: Convert to fraction form
   357,832.69/548,215.59 = 548,215.59/x
3. Step 3: Cross multiply
   357,832.69x = 548,215.59 × 548,215.59
4. Step 4: Simplify right side
   357,832.69x = 300,540,337,230.67
5. Step 5: Solve for x
   x = 300,540,337,230.67/357,832.69
6. Step 6: Final answer
   x = 839,890.67