Finding the Third Proportional to 31,590 and 67,940.44

Step by Step Solution

1. Step 1: Write the proportion equation
   31,590 : 67,940.44 = 67,940.44 : x
2. Step 2: Convert to fraction form
   31,590/67,940.44 = 67,940.44/x
3. Step 3: Cross multiply
   31,590x = 67,940.44 × 67,940.44
4. Step 4: Simplify right side
   31,590x = 4,615,903,047.69
5. Step 5: Solve for x
   x = 4,615,903,047.69/31,590
6. Step 6: Final answer
   x = 146,119.12