Finding the Third Proportional to 204,022,986 and 442,685,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   204,022,986 : 442,685,128.50 = 442,685,128.50 : x
2. Step 2: Convert to fraction form
   204,022,986/442,685,128.50 = 442,685,128.50/x
3. Step 3: Cross multiply
   204,022,986x = 442,685,128.50 × 442,685,128.50
4. Step 4: Simplify right side
   204,022,986x = 195,970,122,995,061,504
5. Step 5: Solve for x
   x = 195,970,122,995,061,504/204,022,986
6. Step 6: Final answer
   x = 960,529,628.73