Finding the Third Proportional to 105,480.56 and 214,877.81

Step by Step Solution

1. Step 1: Write the proportion equation
   105,480.56 : 214,877.81 = 214,877.81 : x
2. Step 2: Convert to fraction form
   105,480.56/214,877.81 = 214,877.81/x
3. Step 3: Cross multiply
   105,480.56x = 214,877.81 × 214,877.81
4. Step 4: Simplify right side
   105,480.56x = 46,172,474,304.79
5. Step 5: Solve for x
   x = 46,172,474,304.79/105,480.56
6. Step 6: Final answer
   x = 437,734.43