Finding the Third Proportional to 13,877.58 and 30,391.45

Step by Step Solution

1. Step 1: Write the proportion equation
   13,877.58 : 30,391.45 = 30,391.45 : x
2. Step 2: Convert to fraction form
   13,877.58/30,391.45 = 30,391.45/x
3. Step 3: Cross multiply
   13,877.58x = 30,391.45 × 30,391.45
4. Step 4: Simplify right side
   13,877.58x = 923,640,423.05
5. Step 5: Solve for x
   x = 923,640,423.05/13,877.58
6. Step 6: Final answer
   x = 66,556.31