Finding the Third Proportional to 149,980.50 and 324,018

Step by Step Solution

1. Step 1: Write the proportion equation
   149,980.50 : 324,018 = 324,018 : x
2. Step 2: Convert to fraction form
   149,980.50/324,018 = 324,018/x
3. Step 3: Cross multiply
   149,980.50x = 324,018 × 324,018
4. Step 4: Simplify right side
   149,980.50x = 104,987,664,324
5. Step 5: Solve for x
   x = 104,987,664,324/149,980.50
6. Step 6: Final answer
   x = 700,008.76