Finding the Third Proportional to 2,478,384 and 5,423,328

Step by Step Solution

1. Step 1: Write the proportion equation
   2,478,384 : 5,423,328 = 5,423,328 : x
2. Step 2: Convert to fraction form
   2,478,384/5,423,328 = 5,423,328/x
3. Step 3: Cross multiply
   2,478,384x = 5,423,328 × 5,423,328
4. Step 4: Simplify right side
   2,478,384x = 29,412,486,595,584
5. Step 5: Solve for x
   x = 29,412,486,595,584/2,478,384
6. Step 6: Final answer
   x = 11,867,606.71