Finding the Third Proportional to 1,620,864 and 3,527,136

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,864 : 3,527,136 = 3,527,136 : x
2. Step 2: Convert to fraction form
   1,620,864/3,527,136 = 3,527,136/x
3. Step 3: Cross multiply
   1,620,864x = 3,527,136 × 3,527,136
4. Step 4: Simplify right side
   1,620,864x = 12,440,688,362,496
5. Step 5: Solve for x
   x = 12,440,688,362,496/1,620,864
6. Step 6: Final answer
   x = 7,675,343.74