Finding the Third Proportional to 2,047.78 and 4,387.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,047.78 : 4,387.69 = 4,387.69 : x
2. Step 2: Convert to fraction form
   2,047.78/4,387.69 = 4,387.69/x
3. Step 3: Cross multiply
   2,047.78x = 4,387.69 × 4,387.69
4. Step 4: Simplify right side
   2,047.78x = 19,251,801.60
5. Step 5: Solve for x
   x = 19,251,801.60/2,047.78
6. Step 6: Final answer
   x = 9,401.30