Finding the Third Proportional to 31,880 and 73,940

Step by Step Solution

1. Step 1: Write the proportion equation
   31,880 : 73,940 = 73,940 : x
2. Step 2: Convert to fraction form
   31,880/73,940 = 73,940/x
3. Step 3: Cross multiply
   31,880x = 73,940 × 73,940
4. Step 4: Simplify right side
   31,880x = 5,467,123,600
5. Step 5: Solve for x
   x = 5,467,123,600/31,880
6. Step 6: Final answer
   x = 171,490.70