Finding the Third Proportional to 154,842 and 339,208.50

Step by Step Solution

1. Step 1: Write the proportion equation
   154,842 : 339,208.50 = 339,208.50 : x
2. Step 2: Convert to fraction form
   154,842/339,208.50 = 339,208.50/x
3. Step 3: Cross multiply
   154,842x = 339,208.50 × 339,208.50
4. Step 4: Simplify right side
   154,842x = 115,062,406,472.25
5. Step 5: Solve for x
   x = 115,062,406,472.25/154,842
6. Step 6: Final answer
   x = 743,095.58