Finding the Third Proportional to 5,218,674 and 10,584,084

Step by Step Solution

1. Step 1: Write the proportion equation
   5,218,674 : 10,584,084 = 10,584,084 : x
2. Step 2: Convert to fraction form
   5,218,674/10,584,084 = 10,584,084/x
3. Step 3: Cross multiply
   5,218,674x = 10,584,084 × 10,584,084
4. Step 4: Simplify right side
   5,218,674x = 112,022,834,119,056
5. Step 5: Solve for x
   x = 112,022,834,119,056/5,218,674
6. Step 6: Final answer
   x = 21,465,765.85