Finding the Third Proportional to 302,518.50 and 660,054

Step by Step Solution

1. Step 1: Write the proportion equation
   302,518.50 : 660,054 = 660,054 : x
2. Step 2: Convert to fraction form
   302,518.50/660,054 = 660,054/x
3. Step 3: Cross multiply
   302,518.50x = 660,054 × 660,054
4. Step 4: Simplify right side
   302,518.50x = 435,671,282,916
5. Step 5: Solve for x
   x = 435,671,282,916/302,518.50
6. Step 6: Final answer
   x = 1,440,147.57