Finding the Third Proportional to 2,166,561 and 4,694,706

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166,561 : 4,694,706 = 4,694,706 : x
2. Step 2: Convert to fraction form
   2,166,561/4,694,706 = 4,694,706/x
3. Step 3: Cross multiply
   2,166,561x = 4,694,706 × 4,694,706
4. Step 4: Simplify right side
   2,166,561x = 22,040,264,426,436
5. Step 5: Solve for x
   x = 22,040,264,426,436/2,166,561
6. Step 6: Final answer
   x = 10,172,925.86