Finding the Third Proportional to 2,172,564 and 3,286,803

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172,564 : 3,286,803 = 3,286,803 : x
2. Step 2: Convert to fraction form
   2,172,564/3,286,803 = 3,286,803/x
3. Step 3: Cross multiply
   2,172,564x = 3,286,803 × 3,286,803
4. Step 4: Simplify right side
   2,172,564x = 10,803,073,960,809
5. Step 5: Solve for x
   x = 10,803,073,960,809/2,172,564
6. Step 6: Final answer
   x = 4,972,499.76