Finding the Third Proportional to 155,317.50 and 339,714

Step by Step Solution

1. Step 1: Write the proportion equation
   155,317.50 : 339,714 = 339,714 : x
2. Step 2: Convert to fraction form
   155,317.50/339,714 = 339,714/x
3. Step 3: Cross multiply
   155,317.50x = 339,714 × 339,714
4. Step 4: Simplify right side
   155,317.50x = 115,405,601,796
5. Step 5: Solve for x
   x = 115,405,601,796/155,317.50
6. Step 6: Final answer
   x = 743,030.26