Finding the Third Proportional to 1,247,648 and 1,778,160

Step by Step Solution

1. Step 1: Write the proportion equation
   1,247,648 : 1,778,160 = 1,778,160 : x
2. Step 2: Convert to fraction form
   1,247,648/1,778,160 = 1,778,160/x
3. Step 3: Cross multiply
   1,247,648x = 1,778,160 × 1,778,160
4. Step 4: Simplify right side
   1,247,648x = 3,161,852,985,600
5. Step 5: Solve for x
   x = 3,161,852,985,600/1,247,648
6. Step 6: Final answer
   x = 2,534,250.83