Finding the Third Proportional to 155,485.83 and 339,111.56

Step by Step Solution

1. Step 1: Write the proportion equation
   155,485.83 : 339,111.56 = 339,111.56 : x
2. Step 2: Convert to fraction form
   155,485.83/339,111.56 = 339,111.56/x
3. Step 3: Cross multiply
   155,485.83x = 339,111.56 × 339,111.56
4. Step 4: Simplify right side
   155,485.83x = 114,996,651,821.19
5. Step 5: Solve for x
   x = 114,996,651,821.19/155,485.83
6. Step 6: Final answer
   x = 739,595.71