Finding the Third Proportional to 31,864.75 and 70,020.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,864.75 : 70,020.25 = 70,020.25 : x
2. Step 2: Convert to fraction form
   31,864.75/70,020.25 = 70,020.25/x
3. Step 3: Cross multiply
   31,864.75x = 70,020.25 × 70,020.25
4. Step 4: Simplify right side
   31,864.75x = 4,902,835,410.06
5. Step 5: Solve for x
   x = 4,902,835,410.06/31,864.75
6. Step 6: Final answer
   x = 153,863.92