Finding the Third Proportional to 42,724 and 87,536

Step by Step Solution

1. Step 1: Write the proportion equation
   42,724 : 87,536 = 87,536 : x
2. Step 2: Convert to fraction form
   42,724/87,536 = 87,536/x
3. Step 3: Cross multiply
   42,724x = 87,536 × 87,536
4. Step 4: Simplify right side
   42,724x = 7,662,551,296
5. Step 5: Solve for x
   x = 7,662,551,296/42,724
6. Step 6: Final answer
   x = 179,350.04