Finding the Third Proportional to 1,778,314 and 4,195,978

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778,314 : 4,195,978 = 4,195,978 : x
2. Step 2: Convert to fraction form
   1,778,314/4,195,978 = 4,195,978/x
3. Step 3: Cross multiply
   1,778,314x = 4,195,978 × 4,195,978
4. Step 4: Simplify right side
   1,778,314x = 17,606,231,376,484
5. Step 5: Solve for x
   x = 17,606,231,376,484/1,778,314
6. Step 6: Final answer
   x = 9,900,518.91