Finding the Third Proportional to 153,840 and 225,300

Step by Step Solution

1. Step 1: Write the proportion equation
   153,840 : 225,300 = 225,300 : x
2. Step 2: Convert to fraction form
   153,840/225,300 = 225,300/x
3. Step 3: Cross multiply
   153,840x = 225,300 × 225,300
4. Step 4: Simplify right side
   153,840x = 50,760,090,000
5. Step 5: Solve for x
   x = 50,760,090,000/153,840
6. Step 6: Final answer
   x = 329,953.78