Finding the Third Proportional to 2,599,687 and 5,610,407

Step by Step Solution

1. Step 1: Write the proportion equation
   2,599,687 : 5,610,407 = 5,610,407 : x
2. Step 2: Convert to fraction form
   2,599,687/5,610,407 = 5,610,407/x
3. Step 3: Cross multiply
   2,599,687x = 5,610,407 × 5,610,407
4. Step 4: Simplify right side
   2,599,687x = 31,476,666,705,649
5. Step 5: Solve for x
   x = 31,476,666,705,649/2,599,687
6. Step 6: Final answer
   x = 12,107,867.87