Finding the Third Proportional to 520,170 and 978,132

Step by Step Solution

1. Step 1: Write the proportion equation
   520,170 : 978,132 = 978,132 : x
2. Step 2: Convert to fraction form
   520,170/978,132 = 978,132/x
3. Step 3: Cross multiply
   520,170x = 978,132 × 978,132
4. Step 4: Simplify right side
   520,170x = 956,742,209,424
5. Step 5: Solve for x
   x = 956,742,209,424/520,170
6. Step 6: Final answer
   x = 1,839,287.56