Finding the Third Proportional to 2,158,445 and 4,662,670

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,445 : 4,662,670 = 4,662,670 : x
2. Step 2: Convert to fraction form
   2,158,445/4,662,670 = 4,662,670/x
3. Step 3: Cross multiply
   2,158,445x = 4,662,670 × 4,662,670
4. Step 4: Simplify right side
   2,158,445x = 21,740,491,528,900
5. Step 5: Solve for x
   x = 21,740,491,528,900/2,158,445
6. Step 6: Final answer
   x = 10,072,293.49