Finding the Third Proportional to 298,894.50 and 448,665.75

Step by Step Solution

1. Step 1: Write the proportion equation
   298,894.50 : 448,665.75 = 448,665.75 : x
2. Step 2: Convert to fraction form
   298,894.50/448,665.75 = 448,665.75/x
3. Step 3: Cross multiply
   298,894.50x = 448,665.75 × 448,665.75
4. Step 4: Simplify right side
   298,894.50x = 201,300,955,223.06
5. Step 5: Solve for x
   x = 201,300,955,223.06/298,894.50
6. Step 6: Final answer
   x = 673,484.98