Finding the Third Proportional to 105,671.25 and 215,034

Step by Step Solution

1. Step 1: Write the proportion equation
   105,671.25 : 215,034 = 215,034 : x
2. Step 2: Convert to fraction form
   105,671.25/215,034 = 215,034/x
3. Step 3: Cross multiply
   105,671.25x = 215,034 × 215,034
4. Step 4: Simplify right side
   105,671.25x = 46,239,621,156
5. Step 5: Solve for x
   x = 46,239,621,156/105,671.25
6. Step 6: Final answer
   x = 437,579.96