Finding the Third Proportional to 55,470.38 and 121,500

Step by Step Solution

1. Step 1: Write the proportion equation
   55,470.38 : 121,500 = 121,500 : x
2. Step 2: Convert to fraction form
   55,470.38/121,500 = 121,500/x
3. Step 3: Cross multiply
   55,470.38x = 121,500 × 121,500
4. Step 4: Simplify right side
   55,470.38x = 14,762,250,000
5. Step 5: Solve for x
   x = 14,762,250,000/55,470.38
6. Step 6: Final answer
   x = 266,128.54