Finding the Third Proportional to 447,085.50 and 676,406.25

Step by Step Solution

1. Step 1: Write the proportion equation
   447,085.50 : 676,406.25 = 676,406.25 : x
2. Step 2: Convert to fraction form
   447,085.50/676,406.25 = 676,406.25/x
3. Step 3: Cross multiply
   447,085.50x = 676,406.25 × 676,406.25
4. Step 4: Simplify right side
   447,085.50x = 457,525,415,039.06
5. Step 5: Solve for x
   x = 457,525,415,039.06/447,085.50
6. Step 6: Final answer
   x = 1,023,351.05