Finding the Third Proportional to 285,069 and 619,758

Step by Step Solution

1. Step 1: Write the proportion equation
   285,069 : 619,758 = 619,758 : x
2. Step 2: Convert to fraction form
   285,069/619,758 = 619,758/x
3. Step 3: Cross multiply
   285,069x = 619,758 × 619,758
4. Step 4: Simplify right side
   285,069x = 384,099,978,564
5. Step 5: Solve for x
   x = 384,099,978,564/285,069
6. Step 6: Final answer
   x = 1,347,393.01