Finding the Third Proportional to 3,509,062 and 7,678,512

Step by Step Solution

1. Step 1: Write the proportion equation
   3,509,062 : 7,678,512 = 7,678,512 : x
2. Step 2: Convert to fraction form
   3,509,062/7,678,512 = 7,678,512/x
3. Step 3: Cross multiply
   3,509,062x = 7,678,512 × 7,678,512
4. Step 4: Simplify right side
   3,509,062x = 58,959,546,534,144
5. Step 5: Solve for x
   x = 58,959,546,534,144/3,509,062
6. Step 6: Final answer
   x = 16,802,081.73