Finding the Third Proportional to 31,984.88 and 67,660.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,984.88 : 67,660.31 = 67,660.31 : x
2. Step 2: Convert to fraction form
   31,984.88/67,660.31 = 67,660.31/x
3. Step 3: Cross multiply
   31,984.88x = 67,660.31 × 67,660.31
4. Step 4: Simplify right side
   31,984.88x = 4,577,917,887.60
5. Step 5: Solve for x
   x = 4,577,917,887.60/31,984.88
6. Step 6: Final answer
   x = 143,127.58