Finding the Third Proportional to 1,238,672 and 1,810,211

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,672 : 1,810,211 = 1,810,211 : x
2. Step 2: Convert to fraction form
   1,238,672/1,810,211 = 1,810,211/x
3. Step 3: Cross multiply
   1,238,672x = 1,810,211 × 1,810,211
4. Step 4: Simplify right side
   1,238,672x = 3,276,863,864,521
5. Step 5: Solve for x
   x = 3,276,863,864,521/1,238,672
6. Step 6: Final answer
   x = 2,645,465.36