Finding the Third Proportional to 153,027 and 324,238.50

Step by Step Solution

1. Step 1: Write the proportion equation
   153,027 : 324,238.50 = 324,238.50 : x
2. Step 2: Convert to fraction form
   153,027/324,238.50 = 324,238.50/x
3. Step 3: Cross multiply
   153,027x = 324,238.50 × 324,238.50
4. Step 4: Simplify right side
   153,027x = 105,130,604,882.25
5. Step 5: Solve for x
   x = 105,130,604,882.25/153,027
6. Step 6: Final answer
   x = 687,006.90