Finding the Third Proportional to 12,485.25 and 27,020.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,485.25 : 27,020.81 = 27,020.81 : x
2. Step 2: Convert to fraction form
   12,485.25/27,020.81 = 27,020.81/x
3. Step 3: Cross multiply
   12,485.25x = 27,020.81 × 27,020.81
4. Step 4: Simplify right side
   12,485.25x = 730,124,308.16
5. Step 5: Solve for x
   x = 730,124,308.16/12,485.25
6. Step 6: Final answer
   x = 58,478.95