Finding the Third Proportional to 42,254.25 and 85,674.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,254.25 : 85,674.75 = 85,674.75 : x
2. Step 2: Convert to fraction form
   42,254.25/85,674.75 = 85,674.75/x
3. Step 3: Cross multiply
   42,254.25x = 85,674.75 × 85,674.75
4. Step 4: Simplify right side
   42,254.25x = 7,340,162,787.56
5. Step 5: Solve for x
   x = 7,340,162,787.56/42,254.25
6. Step 6: Final answer
   x = 173,714.19