Finding the Third Proportional to 1,787,776 and 3,909,770

Step by Step Solution

1. Step 1: Write the proportion equation
   1,787,776 : 3,909,770 = 3,909,770 : x
2. Step 2: Convert to fraction form
   1,787,776/3,909,770 = 3,909,770/x
3. Step 3: Cross multiply
   1,787,776x = 3,909,770 × 3,909,770
4. Step 4: Simplify right side
   1,787,776x = 15,286,301,452,900
5. Step 5: Solve for x
   x = 15,286,301,452,900/1,787,776
6. Step 6: Final answer
   x = 8,550,456.80