Finding the Third Proportional to 2,166,566 and 4,694,716

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166,566 : 4,694,716 = 4,694,716 : x
2. Step 2: Convert to fraction form
   2,166,566/4,694,716 = 4,694,716/x
3. Step 3: Cross multiply
   2,166,566x = 4,694,716 × 4,694,716
4. Step 4: Simplify right side
   2,166,566x = 22,040,358,320,656
5. Step 5: Solve for x
   x = 22,040,358,320,656/2,166,566
6. Step 6: Final answer
   x = 10,172,945.72