Finding the Third Proportional to 2,786,877 and 4,307,136

Step by Step Solution

1. Step 1: Write the proportion equation
   2,786,877 : 4,307,136 = 4,307,136 : x
2. Step 2: Convert to fraction form
   2,786,877/4,307,136 = 4,307,136/x
3. Step 3: Cross multiply
   2,786,877x = 4,307,136 × 4,307,136
4. Step 4: Simplify right side
   2,786,877x = 18,551,420,522,496
5. Step 5: Solve for x
   x = 18,551,420,522,496/2,786,877
6. Step 6: Final answer
   x = 6,656,705.88