Finding the Third Proportional to 1,238,622 and 1,810,140

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,622 : 1,810,140 = 1,810,140 : x
2. Step 2: Convert to fraction form
   1,238,622/1,810,140 = 1,810,140/x
3. Step 3: Cross multiply
   1,238,622x = 1,810,140 × 1,810,140
4. Step 4: Simplify right side
   1,238,622x = 3,276,606,819,600
5. Step 5: Solve for x
   x = 3,276,606,819,600/1,238,622
6. Step 6: Final answer
   x = 2,645,364.62