Finding the Third Proportional to 42,586 and 87,907

Step by Step Solution

1. Step 1: Write the proportion equation
   42,586 : 87,907 = 87,907 : x
2. Step 2: Convert to fraction form
   42,586/87,907 = 87,907/x
3. Step 3: Cross multiply
   42,586x = 87,907 × 87,907
4. Step 4: Simplify right side
   42,586x = 7,727,640,649
5. Step 5: Solve for x
   x = 7,727,640,649/42,586
6. Step 6: Final answer
   x = 181,459.65