Finding the Third Proportional to 2,591,478 and 5,348,560

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591,478 : 5,348,560 = 5,348,560 : x
2. Step 2: Convert to fraction form
   2,591,478/5,348,560 = 5,348,560/x
3. Step 3: Cross multiply
   2,591,478x = 5,348,560 × 5,348,560
4. Step 4: Simplify right side
   2,591,478x = 28,607,094,073,600
5. Step 5: Solve for x
   x = 28,607,094,073,600/2,591,478
6. Step 6: Final answer
   x = 11,038,910.64