Finding the Third Proportional to 339,966 and 500,053.50

Step by Step Solution

1. Step 1: Write the proportion equation
   339,966 : 500,053.50 = 500,053.50 : x
2. Step 2: Convert to fraction form
   339,966/500,053.50 = 500,053.50/x
3. Step 3: Cross multiply
   339,966x = 500,053.50 × 500,053.50
4. Step 4: Simplify right side
   339,966x = 250,053,502,862.25
5. Step 5: Solve for x
   x = 250,053,502,862.25/339,966
6. Step 6: Final answer
   x = 735,525.03