Finding the Third Proportional to 1,391,165 and 2,931,766

Step by Step Solution

1. Step 1: Write the proportion equation
   1,391,165 : 2,931,766 = 2,931,766 : x
2. Step 2: Convert to fraction form
   1,391,165/2,931,766 = 2,931,766/x
3. Step 3: Cross multiply
   1,391,165x = 2,931,766 × 2,931,766
4. Step 4: Simplify right side
   1,391,165x = 8,595,251,878,756
5. Step 5: Solve for x
   x = 8,595,251,878,756/1,391,165
6. Step 6: Final answer
   x = 6,178,456.10