Finding the Third Proportional to 400,484.25 and 874,820.25

Step by Step Solution

1. Step 1: Write the proportion equation
   400,484.25 : 874,820.25 = 874,820.25 : x
2. Step 2: Convert to fraction form
   400,484.25/874,820.25 = 874,820.25/x
3. Step 3: Cross multiply
   400,484.25x = 874,820.25 × 874,820.25
4. Step 4: Simplify right side
   400,484.25x = 765,310,469,810.06
5. Step 5: Solve for x
   x = 765,310,469,810.06/400,484.25
6. Step 6: Final answer
   x = 1,910,962.72