Finding the Third Proportional to 12,808,116 and 19,810,692

Step by Step Solution

1. Step 1: Write the proportion equation
   12,808,116 : 19,810,692 = 19,810,692 : x
2. Step 2: Convert to fraction form
   12,808,116/19,810,692 = 19,810,692/x
3. Step 3: Cross multiply
   12,808,116x = 19,810,692 × 19,810,692
4. Step 4: Simplify right side
   12,808,116x = 392,463,517,518,864
5. Step 5: Solve for x
   x = 392,463,517,518,864/12,808,116
6. Step 6: Final answer
   x = 30,641,783.50