Finding the Third Proportional to 1,537,211 and 2,189,786

Step by Step Solution

1. Step 1: Write the proportion equation
   1,537,211 : 2,189,786 = 2,189,786 : x
2. Step 2: Convert to fraction form
   1,537,211/2,189,786 = 2,189,786/x
3. Step 3: Cross multiply
   1,537,211x = 2,189,786 × 2,189,786
4. Step 4: Simplify right side
   1,537,211x = 4,795,162,725,796
5. Step 5: Solve for x
   x = 4,795,162,725,796/1,537,211
6. Step 6: Final answer
   x = 3,119,391.37