Finding the Third Proportional to 130,522 and 285,012

Step by Step Solution

1. Step 1: Write the proportion equation
   130,522 : 285,012 = 285,012 : x
2. Step 2: Convert to fraction form
   130,522/285,012 = 285,012/x
3. Step 3: Cross multiply
   130,522x = 285,012 × 285,012
4. Step 4: Simplify right side
   130,522x = 81,231,840,144
5. Step 5: Solve for x
   x = 81,231,840,144/130,522
6. Step 6: Final answer
   x = 622,361.29