Finding the Third Proportional to 40,560 and 87,156

Step by Step Solution

1. Step 1: Write the proportion equation
   40,560 : 87,156 = 87,156 : x
2. Step 2: Convert to fraction form
   40,560/87,156 = 87,156/x
3. Step 3: Cross multiply
   40,560x = 87,156 × 87,156
4. Step 4: Simplify right side
   40,560x = 7,596,168,336
5. Step 5: Solve for x
   x = 7,596,168,336/40,560
6. Step 6: Final answer
   x = 187,282.26