Finding the Third Proportional to 1,238,664 and 1,810,200

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,664 : 1,810,200 = 1,810,200 : x
2. Step 2: Convert to fraction form
   1,238,664/1,810,200 = 1,810,200/x
3. Step 3: Cross multiply
   1,238,664x = 1,810,200 × 1,810,200
4. Step 4: Simplify right side
   1,238,664x = 3,276,824,040,000
5. Step 5: Solve for x
   x = 3,276,824,040,000/1,238,664
6. Step 6: Final answer
   x = 2,645,450.29