Finding the Third Proportional to 1,210,998 and 2,595,866

Step by Step Solution

1. Step 1: Write the proportion equation
   1,210,998 : 2,595,866 = 2,595,866 : x
2. Step 2: Convert to fraction form
   1,210,998/2,595,866 = 2,595,866/x
3. Step 3: Cross multiply
   1,210,998x = 2,595,866 × 2,595,866
4. Step 4: Simplify right side
   1,210,998x = 6,738,520,289,956
5. Step 5: Solve for x
   x = 6,738,520,289,956/1,210,998
6. Step 6: Final answer
   x = 5,564,435.52