Finding the Third Proportional to 5,278,960 and 8,161,032

Step by Step Solution

1. Step 1: Write the proportion equation
   5,278,960 : 8,161,032 = 8,161,032 : x
2. Step 2: Convert to fraction form
   5,278,960/8,161,032 = 8,161,032/x
3. Step 3: Cross multiply
   5,278,960x = 8,161,032 × 8,161,032
4. Step 4: Simplify right side
   5,278,960x = 66,602,443,305,024
5. Step 5: Solve for x
   x = 66,602,443,305,024/5,278,960
6. Step 6: Final answer
   x = 12,616,584.20