Finding the Third Proportional to 428,142 and 927,600

Step by Step Solution

1. Step 1: Write the proportion equation
   428,142 : 927,600 = 927,600 : x
2. Step 2: Convert to fraction form
   428,142/927,600 = 927,600/x
3. Step 3: Cross multiply
   428,142x = 927,600 × 927,600
4. Step 4: Simplify right side
   428,142x = 860,441,760,000
5. Step 5: Solve for x
   x = 860,441,760,000/428,142
6. Step 6: Final answer
   x = 2,009,711.17