Finding the Third Proportional to 2,426,788 and 5,280,391

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426,788 : 5,280,391 = 5,280,391 : x
2. Step 2: Convert to fraction form
   2,426,788/5,280,391 = 5,280,391/x
3. Step 3: Cross multiply
   2,426,788x = 5,280,391 × 5,280,391
4. Step 4: Simplify right side
   2,426,788x = 27,882,529,112,881
5. Step 5: Solve for x
   x = 27,882,529,112,881/2,426,788
6. Step 6: Final answer
   x = 11,489,478.73