Finding the Third Proportional to 54,499.50 and 121,754.25

Step by Step Solution

1. Step 1: Write the proportion equation
   54,499.50 : 121,754.25 = 121,754.25 : x
2. Step 2: Convert to fraction form
   54,499.50/121,754.25 = 121,754.25/x
3. Step 3: Cross multiply
   54,499.50x = 121,754.25 × 121,754.25
4. Step 4: Simplify right side
   54,499.50x = 14,824,097,393.06
5. Step 5: Solve for x
   x = 14,824,097,393.06/54,499.50
6. Step 6: Final answer
   x = 272,004.28