Finding the Third Proportional to 1,783,396 and 3,865,512

Step by Step Solution

1. Step 1: Write the proportion equation
   1,783,396 : 3,865,512 = 3,865,512 : x
2. Step 2: Convert to fraction form
   1,783,396/3,865,512 = 3,865,512/x
3. Step 3: Cross multiply
   1,783,396x = 3,865,512 × 3,865,512
4. Step 4: Simplify right side
   1,783,396x = 14,942,183,022,144
5. Step 5: Solve for x
   x = 14,942,183,022,144/1,783,396
6. Step 6: Final answer
   x = 8,378,499.80