Finding the Third Proportional to 302,878.50 and 660,771

Step by Step Solution

1. Step 1: Write the proportion equation
   302,878.50 : 660,771 = 660,771 : x
2. Step 2: Convert to fraction form
   302,878.50/660,771 = 660,771/x
3. Step 3: Cross multiply
   302,878.50x = 660,771 × 660,771
4. Step 4: Simplify right side
   302,878.50x = 436,618,314,441
5. Step 5: Solve for x
   x = 436,618,314,441/302,878.50
6. Step 6: Final answer
   x = 1,441,562.59