Finding the Third Proportional to 12,912.13 and 19,952.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,912.13 : 19,952.06 = 19,952.06 : x
2. Step 2: Convert to fraction form
   12,912.13/19,952.06 = 19,952.06/x
3. Step 3: Cross multiply
   12,912.13x = 19,952.06 × 19,952.06
4. Step 4: Simplify right side
   12,912.13x = 398,084,798.00
5. Step 5: Solve for x
   x = 398,084,798.00/12,912.13
6. Step 6: Final answer
   x = 30,830.31