Finding the Third Proportional to 428,028 and 927,388

Step by Step Solution

1. Step 1: Write the proportion equation
   428,028 : 927,388 = 927,388 : x
2. Step 2: Convert to fraction form
   428,028/927,388 = 927,388/x
3. Step 3: Cross multiply
   428,028x = 927,388 × 927,388
4. Step 4: Simplify right side
   428,028x = 860,048,502,544
5. Step 5: Solve for x
   x = 860,048,502,544/428,028
6. Step 6: Final answer
   x = 2,009,327.67