Finding the Third Proportional to 153,040 and 205,260

Step by Step Solution

1. Step 1: Write the proportion equation
   153,040 : 205,260 = 205,260 : x
2. Step 2: Convert to fraction form
   153,040/205,260 = 205,260/x
3. Step 3: Cross multiply
   153,040x = 205,260 × 205,260
4. Step 4: Simplify right side
   153,040x = 42,131,667,600
5. Step 5: Solve for x
   x = 42,131,667,600/153,040
6. Step 6: Final answer
   x = 275,298.40