Finding the Third Proportional to 1,787,117 and 3,915,385

Step by Step Solution

1. Step 1: Write the proportion equation
   1,787,117 : 3,915,385 = 3,915,385 : x
2. Step 2: Convert to fraction form
   1,787,117/3,915,385 = 3,915,385/x
3. Step 3: Cross multiply
   1,787,117x = 3,915,385 × 3,915,385
4. Step 4: Simplify right side
   1,787,117x = 15,330,239,698,225
5. Step 5: Solve for x
   x = 15,330,239,698,225/1,787,117
6. Step 6: Final answer
   x = 8,578,195.89