Finding the Third Proportional to 428,030 and 927,390

Step by Step Solution

1. Step 1: Write the proportion equation
   428,030 : 927,390 = 927,390 : x
2. Step 2: Convert to fraction form
   428,030/927,390 = 927,390/x
3. Step 3: Cross multiply
   428,030x = 927,390 × 927,390
4. Step 4: Simplify right side
   428,030x = 860,052,212,100
5. Step 5: Solve for x
   x = 860,052,212,100/428,030
6. Step 6: Final answer
   x = 2,009,326.94