Finding the Third Proportional to 55,463.50 and 121,423

Step by Step Solution

1. Step 1: Write the proportion equation
   55,463.50 : 121,423 = 121,423 : x
2. Step 2: Convert to fraction form
   55,463.50/121,423 = 121,423/x
3. Step 3: Cross multiply
   55,463.50x = 121,423 × 121,423
4. Step 4: Simplify right side
   55,463.50x = 14,743,544,929
5. Step 5: Solve for x
   x = 14,743,544,929/55,463.50
6. Step 6: Final answer
   x = 265,824.28