Finding the Third Proportional to 1,987,816 and 4,366,136

Step by Step Solution

1. Step 1: Write the proportion equation
   1,987,816 : 4,366,136 = 4,366,136 : x
2. Step 2: Convert to fraction form
   1,987,816/4,366,136 = 4,366,136/x
3. Step 3: Cross multiply
   1,987,816x = 4,366,136 × 4,366,136
4. Step 4: Simplify right side
   1,987,816x = 19,063,143,570,496
5. Step 5: Solve for x
   x = 19,063,143,570,496/1,987,816
6. Step 6: Final answer
   x = 9,589,994.03