Finding the Third Proportional to 339,009.75 and 464,845.50

Step by Step Solution

1. Step 1: Write the proportion equation
   339,009.75 : 464,845.50 = 464,845.50 : x
2. Step 2: Convert to fraction form
   339,009.75/464,845.50 = 464,845.50/x
3. Step 3: Cross multiply
   339,009.75x = 464,845.50 × 464,845.50
4. Step 4: Simplify right side
   339,009.75x = 216,081,338,870.25
5. Step 5: Solve for x
   x = 216,081,338,870.25/339,009.75
6. Step 6: Final answer
   x = 637,389.75