Finding the Third Proportional to 55,381.50 and 118,638

Step by Step Solution

1. Step 1: Write the proportion equation
   55,381.50 : 118,638 = 118,638 : x
2. Step 2: Convert to fraction form
   55,381.50/118,638 = 118,638/x
3. Step 3: Cross multiply
   55,381.50x = 118,638 × 118,638
4. Step 4: Simplify right side
   55,381.50x = 14,074,975,044
5. Step 5: Solve for x
   x = 14,074,975,044/55,381.50
6. Step 6: Final answer
   x = 254,145.79