Finding the Third Proportional to 2,146,960 and 4,387,136

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146,960 : 4,387,136 = 4,387,136 : x
2. Step 2: Convert to fraction form
   2,146,960/4,387,136 = 4,387,136/x
3. Step 3: Cross multiply
   2,146,960x = 4,387,136 × 4,387,136
4. Step 4: Simplify right side
   2,146,960x = 19,246,962,282,496
5. Step 5: Solve for x
   x = 19,246,962,282,496/2,146,960
6. Step 6: Final answer
   x = 8,964,751.22