Finding the Third Proportional to 1,057,538 and 2,186,212

Step by Step Solution

1. Step 1: Write the proportion equation
   1,057,538 : 2,186,212 = 2,186,212 : x
2. Step 2: Convert to fraction form
   1,057,538/2,186,212 = 2,186,212/x
3. Step 3: Cross multiply
   1,057,538x = 2,186,212 × 2,186,212
4. Step 4: Simplify right side
   1,057,538x = 4,779,522,908,944
5. Step 5: Solve for x
   x = 4,779,522,908,944/1,057,538
6. Step 6: Final answer
   x = 4,519,481.01