Finding the Third Proportional to 478,807 and 1,028,175

Step by Step Solution

1. Step 1: Write the proportion equation
   478,807 : 1,028,175 = 1,028,175 : x
2. Step 2: Convert to fraction form
   478,807/1,028,175 = 1,028,175/x
3. Step 3: Cross multiply
   478,807x = 1,028,175 × 1,028,175
4. Step 4: Simplify right side
   478,807x = 1,057,143,830,625
5. Step 5: Solve for x
   x = 1,057,143,830,625/478,807
6. Step 6: Final answer
   x = 2,207,870.46