Finding the Third Proportional to 240,478.88 and 380,771.72

Step by Step Solution

1. Step 1: Write the proportion equation
   240,478.88 : 380,771.72 = 380,771.72 : x
2. Step 2: Convert to fraction form
   240,478.88/380,771.72 = 380,771.72/x
3. Step 3: Cross multiply
   240,478.88x = 380,771.72 × 380,771.72
4. Step 4: Simplify right side
   240,478.88x = 144,987,101,799.83
5. Step 5: Solve for x
   x = 144,987,101,799.83/240,478.88
6. Step 6: Final answer
   x = 602,909.93