Finding the Third Proportional to 339,796.69 and 731,664.56

Step by Step Solution

1. Step 1: Write the proportion equation
   339,796.69 : 731,664.56 = 731,664.56 : x
2. Step 2: Convert to fraction form
   339,796.69/731,664.56 = 731,664.56/x
3. Step 3: Cross multiply
   339,796.69x = 731,664.56 × 731,664.56
4. Step 4: Simplify right side
   339,796.69x = 535,333,032,018.32
5. Step 5: Solve for x
   x = 535,333,032,018.32/339,796.69
6. Step 6: Final answer
   x = 1,575,451.00