Finding the Third Proportional to 209,758.50 and 448,353

Step by Step Solution

1. Step 1: Write the proportion equation
   209,758.50 : 448,353 = 448,353 : x
2. Step 2: Convert to fraction form
   209,758.50/448,353 = 448,353/x
3. Step 3: Cross multiply
   209,758.50x = 448,353 × 448,353
4. Step 4: Simplify right side
   209,758.50x = 201,020,412,609
5. Step 5: Solve for x
   x = 201,020,412,609/209,758.50
6. Step 6: Final answer
   x = 958,342.15