Finding the Third Proportional to 42,261 and 63,555

Step by Step Solution

1. Step 1: Write the proportion equation
   42,261 : 63,555 = 63,555 : x
2. Step 2: Convert to fraction form
   42,261/63,555 = 63,555/x
3. Step 3: Cross multiply
   42,261x = 63,555 × 63,555
4. Step 4: Simplify right side
   42,261x = 4,039,238,025
5. Step 5: Solve for x
   x = 4,039,238,025/42,261
6. Step 6: Final answer
   x = 95,578.38