Finding the Third Proportional to 3,120,860 and 6,813,254

Step by Step Solution

1. Step 1: Write the proportion equation
   3,120,860 : 6,813,254 = 6,813,254 : x
2. Step 2: Convert to fraction form
   3,120,860/6,813,254 = 6,813,254/x
3. Step 3: Cross multiply
   3,120,860x = 6,813,254 × 6,813,254
4. Step 4: Simplify right side
   3,120,860x = 46,420,430,068,516
5. Step 5: Solve for x
   x = 46,420,430,068,516/3,120,860
6. Step 6: Final answer
   x = 14,874,243.02