Finding the Third Proportional to 42,587 and 87,908

Step by Step Solution

1. Step 1: Write the proportion equation
   42,587 : 87,908 = 87,908 : x
2. Step 2: Convert to fraction form
   42,587/87,908 = 87,908/x
3. Step 3: Cross multiply
   42,587x = 87,908 × 87,908
4. Step 4: Simplify right side
   42,587x = 7,727,816,464
5. Step 5: Solve for x
   x = 7,727,816,464/42,587
6. Step 6: Final answer
   x = 181,459.52