Finding the Third Proportional to 221,538 and 485,962

Step by Step Solution

1. Step 1: Write the proportion equation
   221,538 : 485,962 = 485,962 : x
2. Step 2: Convert to fraction form
   221,538/485,962 = 485,962/x
3. Step 3: Cross multiply
   221,538x = 485,962 × 485,962
4. Step 4: Simplify right side
   221,538x = 236,159,065,444
5. Step 5: Solve for x
   x = 236,159,065,444/221,538
6. Step 6: Final answer
   x = 1,065,998.00