Finding the Third Proportional to 31,231.50 and 64,893

Step by Step Solution

1. Step 1: Write the proportion equation
   31,231.50 : 64,893 = 64,893 : x
2. Step 2: Convert to fraction form
   31,231.50/64,893 = 64,893/x
3. Step 3: Cross multiply
   31,231.50x = 64,893 × 64,893
4. Step 4: Simplify right side
   31,231.50x = 4,211,101,449
5. Step 5: Solve for x
   x = 4,211,101,449/31,231.50
6. Step 6: Final answer
   x = 134,835.07