Finding the Third Proportional to 344,819 and 538,189.50

Step by Step Solution

1. Step 1: Write the proportion equation
   344,819 : 538,189.50 = 538,189.50 : x
2. Step 2: Convert to fraction form
   344,819/538,189.50 = 538,189.50/x
3. Step 3: Cross multiply
   344,819x = 538,189.50 × 538,189.50
4. Step 4: Simplify right side
   344,819x = 289,647,937,910.25
5. Step 5: Solve for x
   x = 289,647,937,910.25/344,819
6. Step 6: Final answer
   x = 839,999.94