Finding the Third Proportional to 447,799.50 and 670,054.50

Step by Step Solution

1. Step 1: Write the proportion equation
   447,799.50 : 670,054.50 = 670,054.50 : x
2. Step 2: Convert to fraction form
   447,799.50/670,054.50 = 670,054.50/x
3. Step 3: Cross multiply
   447,799.50x = 670,054.50 × 670,054.50
4. Step 4: Simplify right side
   447,799.50x = 448,973,032,970.25
5. Step 5: Solve for x
   x = 448,973,032,970.25/447,799.50
6. Step 6: Final answer
   x = 1,002,620.67