Finding the Third Proportional to 339,592 and 459,565.50

Step by Step Solution

1. Step 1: Write the proportion equation
   339,592 : 459,565.50 = 459,565.50 : x
2. Step 2: Convert to fraction form
   339,592/459,565.50 = 459,565.50/x
3. Step 3: Cross multiply
   339,592x = 459,565.50 × 459,565.50
4. Step 4: Simplify right side
   339,592x = 211,200,448,790.25
5. Step 5: Solve for x
   x = 211,200,448,790.25/339,592
6. Step 6: Final answer
   x = 621,924.10