Finding the Third Proportional to 2,407,171 and 5,286,661

Step by Step Solution

1. Step 1: Write the proportion equation
   2,407,171 : 5,286,661 = 5,286,661 : x
2. Step 2: Convert to fraction form
   2,407,171/5,286,661 = 5,286,661/x
3. Step 3: Cross multiply
   2,407,171x = 5,286,661 × 5,286,661
4. Step 4: Simplify right side
   2,407,171x = 27,948,784,528,921
5. Step 5: Solve for x
   x = 27,948,784,528,921/2,407,171
6. Step 6: Final answer
   x = 11,610,635.28