Finding the Third Proportional to 448,401 and 655,357.50

Step by Step Solution

1. Step 1: Write the proportion equation
   448,401 : 655,357.50 = 655,357.50 : x
2. Step 2: Convert to fraction form
   448,401/655,357.50 = 655,357.50/x
3. Step 3: Cross multiply
   448,401x = 655,357.50 × 655,357.50
4. Step 4: Simplify right side
   448,401x = 429,493,452,806.25
5. Step 5: Solve for x
   x = 429,493,452,806.25/448,401
6. Step 6: Final answer
   x = 957,833.40