Finding the Third Proportional to 56,144 and 120,550

Step by Step Solution

1. Step 1: Write the proportion equation
   56,144 : 120,550 = 120,550 : x
2. Step 2: Convert to fraction form
   56,144/120,550 = 120,550/x
3. Step 3: Cross multiply
   56,144x = 120,550 × 120,550
4. Step 4: Simplify right side
   56,144x = 14,532,302,500
5. Step 5: Solve for x
   x = 14,532,302,500/56,144
6. Step 6: Final answer
   x = 258,839.81