Finding the Third Proportional to 31,469.63 and 68,271.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,469.63 : 68,271.75 = 68,271.75 : x
2. Step 2: Convert to fraction form
   31,469.63/68,271.75 = 68,271.75/x
3. Step 3: Cross multiply
   31,469.63x = 68,271.75 × 68,271.75
4. Step 4: Simplify right side
   31,469.63x = 4,661,031,848.06
5. Step 5: Solve for x
   x = 4,661,031,848.06/31,469.63
6. Step 6: Final answer
   x = 148,112.09