Finding the Third Proportional to 306,795 and 659,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   306,795 : 659,128.50 = 659,128.50 : x
2. Step 2: Convert to fraction form
   306,795/659,128.50 = 659,128.50/x
3. Step 3: Cross multiply
   306,795x = 659,128.50 × 659,128.50
4. Step 4: Simplify right side
   306,795x = 434,450,379,512.25
5. Step 5: Solve for x
   x = 434,450,379,512.25/306,795
6. Step 6: Final answer
   x = 1,416,093.42