Finding the Third Proportional to 152,622 and 318,852

Step by Step Solution

1. Step 1: Write the proportion equation
   152,622 : 318,852 = 318,852 : x
2. Step 2: Convert to fraction form
   152,622/318,852 = 318,852/x
3. Step 3: Cross multiply
   152,622x = 318,852 × 318,852
4. Step 4: Simplify right side
   152,622x = 101,666,597,904
5. Step 5: Solve for x
   x = 101,666,597,904/152,622
6. Step 6: Final answer
   x = 666,133.31