Finding the Third Proportional to 155,698 and 240,839

Step by Step Solution

1. Step 1: Write the proportion equation
   155,698 : 240,839 = 240,839 : x
2. Step 2: Convert to fraction form
   155,698/240,839 = 240,839/x
3. Step 3: Cross multiply
   155,698x = 240,839 × 240,839
4. Step 4: Simplify right side
   155,698x = 58,003,423,921
5. Step 5: Solve for x
   x = 58,003,423,921/155,698
6. Step 6: Final answer
   x = 372,538.02