Finding the Third Proportional to 302,899.50 and 660,813

Step by Step Solution

1. Step 1: Write the proportion equation
   302,899.50 : 660,813 = 660,813 : x
2. Step 2: Convert to fraction form
   302,899.50/660,813 = 660,813/x
3. Step 3: Cross multiply
   302,899.50x = 660,813 × 660,813
4. Step 4: Simplify right side
   302,899.50x = 436,673,820,969
5. Step 5: Solve for x
   x = 436,673,820,969/302,899.50
6. Step 6: Final answer
   x = 1,441,645.90