Finding the Third Proportional to 3,134,772 and 6,402,380

Step by Step Solution

1. Step 1: Write the proportion equation
   3,134,772 : 6,402,380 = 6,402,380 : x
2. Step 2: Convert to fraction form
   3,134,772/6,402,380 = 6,402,380/x
3. Step 3: Cross multiply
   3,134,772x = 6,402,380 × 6,402,380
4. Step 4: Simplify right side
   3,134,772x = 40,990,469,664,400
5. Step 5: Solve for x
   x = 40,990,469,664,400/3,134,772
6. Step 6: Final answer
   x = 13,076,060.93