Finding the Third Proportional to 7,678,432 and 17,776,048

Step by Step Solution

1. Step 1: Write the proportion equation
   7,678,432 : 17,776,048 = 17,776,048 : x
2. Step 2: Convert to fraction form
   7,678,432/17,776,048 = 17,776,048/x
3. Step 3: Cross multiply
   7,678,432x = 17,776,048 × 17,776,048
4. Step 4: Simplify right side
   7,678,432x = 315,987,882,498,304
5. Step 5: Solve for x
   x = 315,987,882,498,304/7,678,432
6. Step 6: Final answer
   x = 41,152,657.53