Finding the Third Proportional to 12,820,397.06 and 19,824,568.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,820,397.06 : 19,824,568.59 = 19,824,568.59 : x
2. Step 2: Convert to fraction form
   12,820,397.06/19,824,568.59 = 19,824,568.59/x
3. Step 3: Cross multiply
   12,820,397.06x = 19,824,568.59 × 19,824,568.59
4. Step 4: Simplify right side
   12,820,397.06x = 393,013,519,928,298.88
5. Step 5: Solve for x
   x = 393,013,519,928,298.88/12,820,397.06
6. Step 6: Final answer
   x = 30,655,331.35