Finding the Third Proportional to 2,188,665.88 and 3,496,427.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188,665.88 : 3,496,427.81 = 3,496,427.81 : x
2. Step 2: Convert to fraction form
   2,188,665.88/3,496,427.81 = 3,496,427.81/x
3. Step 3: Cross multiply
   2,188,665.88x = 3,496,427.81 × 3,496,427.81
4. Step 4: Simplify right side
   2,188,665.88x = 12,225,007,407,050.30
5. Step 5: Solve for x
   x = 12,225,007,407,050.30/2,188,665.88
6. Step 6: Final answer
   x = 5,585,597.84