Finding the Third Proportional to 1,238,696 and 1,810,240

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,696 : 1,810,240 = 1,810,240 : x
2. Step 2: Convert to fraction form
   1,238,696/1,810,240 = 1,810,240/x
3. Step 3: Cross multiply
   1,238,696x = 1,810,240 × 1,810,240
4. Step 4: Simplify right side
   1,238,696x = 3,276,968,857,600
5. Step 5: Solve for x
   x = 3,276,968,857,600/1,238,696
6. Step 6: Final answer
   x = 2,645,498.86