Finding the Third Proportional to 200,734.50 and 445,749

Step by Step Solution

1. Step 1: Write the proportion equation
   200,734.50 : 445,749 = 445,749 : x
2. Step 2: Convert to fraction form
   200,734.50/445,749 = 445,749/x
3. Step 3: Cross multiply
   200,734.50x = 445,749 × 445,749
4. Step 4: Simplify right side
   200,734.50x = 198,692,171,001
5. Step 5: Solve for x
   x = 198,692,171,001/200,734.50
6. Step 6: Final answer
   x = 989,825.72