Finding the Third Proportional to 302,884.50 and 660,778

Step by Step Solution

1. Step 1: Write the proportion equation
   302,884.50 : 660,778 = 660,778 : x
2. Step 2: Convert to fraction form
   302,884.50/660,778 = 660,778/x
3. Step 3: Cross multiply
   302,884.50x = 660,778 × 660,778
4. Step 4: Simplify right side
   302,884.50x = 436,627,565,284
5. Step 5: Solve for x
   x = 436,627,565,284/302,884.50
6. Step 6: Final answer
   x = 1,441,564.57