Finding the Third Proportional to 199,687 and 301,610

Step by Step Solution

1. Step 1: Write the proportion equation
   199,687 : 301,610 = 301,610 : x
2. Step 2: Convert to fraction form
   199,687/301,610 = 301,610/x
3. Step 3: Cross multiply
   199,687x = 301,610 × 301,610
4. Step 4: Simplify right side
   199,687x = 90,968,592,100
5. Step 5: Solve for x
   x = 90,968,592,100/199,687
6. Step 6: Final answer
   x = 455,555.91