Finding the Third Proportional to 1,787,119 and 3,915,389

Step by Step Solution

1. Step 1: Write the proportion equation
   1,787,119 : 3,915,389 = 3,915,389 : x
2. Step 2: Convert to fraction form
   1,787,119/3,915,389 = 3,915,389/x
3. Step 3: Cross multiply
   1,787,119x = 3,915,389 × 3,915,389
4. Step 4: Simplify right side
   1,787,119x = 15,330,271,021,321
5. Step 5: Solve for x
   x = 15,330,271,021,321/1,787,119
6. Step 6: Final answer
   x = 8,578,203.81