Finding the Third Proportional to 88,040 and 186,988

Step by Step Solution

1. Step 1: Write the proportion equation
   88,040 : 186,988 = 186,988 : x
2. Step 2: Convert to fraction form
   88,040/186,988 = 186,988/x
3. Step 3: Cross multiply
   88,040x = 186,988 × 186,988
4. Step 4: Simplify right side
   88,040x = 34,964,512,144
5. Step 5: Solve for x
   x = 34,964,512,144/88,040
6. Step 6: Final answer
   x = 397,143.48