Finding the Third Proportional to 12,997.13 and 30,359.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,997.13 : 30,359.81 = 30,359.81 : x
2. Step 2: Convert to fraction form
   12,997.13/30,359.81 = 30,359.81/x
3. Step 3: Cross multiply
   12,997.13x = 30,359.81 × 30,359.81
4. Step 4: Simplify right side
   12,997.13x = 921,718,215.04
5. Step 5: Solve for x
   x = 921,718,215.04/12,997.13
6. Step 6: Final answer
   x = 70,917.08