Finding the Third Proportional to 12,942,760 and 28,161,872

Step by Step Solution

1. Step 1: Write the proportion equation
   12,942,760 : 28,161,872 = 28,161,872 : x
2. Step 2: Convert to fraction form
   12,942,760/28,161,872 = 28,161,872/x
3. Step 3: Cross multiply
   12,942,760x = 28,161,872 × 28,161,872
4. Step 4: Simplify right side
   12,942,760x = 793,091,034,544,384
5. Step 5: Solve for x
   x = 793,091,034,544,384/12,942,760
6. Step 6: Final answer
   x = 61,276,809.16