Finding the Third Proportional to 448,453.50 and 655,413

Step by Step Solution

1. Step 1: Write the proportion equation
   448,453.50 : 655,413 = 655,413 : x
2. Step 2: Convert to fraction form
   448,453.50/655,413 = 655,413/x
3. Step 3: Cross multiply
   448,453.50x = 655,413 × 655,413
4. Step 4: Simplify right side
   448,453.50x = 429,566,200,569
5. Step 5: Solve for x
   x = 429,566,200,569/448,453.50
6. Step 6: Final answer
   x = 957,883.48