Finding the Third Proportional to 1,387,984 and 2,136,104

Step by Step Solution

1. Step 1: Write the proportion equation
   1,387,984 : 2,136,104 = 2,136,104 : x
2. Step 2: Convert to fraction form
   1,387,984/2,136,104 = 2,136,104/x
3. Step 3: Cross multiply
   1,387,984x = 2,136,104 × 2,136,104
4. Step 4: Simplify right side
   1,387,984x = 4,562,940,298,816
5. Step 5: Solve for x
   x = 4,562,940,298,816/1,387,984
6. Step 6: Final answer
   x = 3,287,458.86