Finding the Third Proportional to 2,599,664 and 5,610,361

Step by Step Solution

1. Step 1: Write the proportion equation
   2,599,664 : 5,610,361 = 5,610,361 : x
2. Step 2: Convert to fraction form
   2,599,664/5,610,361 = 5,610,361/x
3. Step 3: Cross multiply
   2,599,664x = 5,610,361 × 5,610,361
4. Step 4: Simplify right side
   2,599,664x = 31,476,150,550,321
5. Step 5: Solve for x
   x = 31,476,150,550,321/2,599,664
6. Step 6: Final answer
   x = 12,107,776.45