Finding the Third Proportional to 2,385,644 and 4,972,474

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385,644 : 4,972,474 = 4,972,474 : x
2. Step 2: Convert to fraction form
   2,385,644/4,972,474 = 4,972,474/x
3. Step 3: Cross multiply
   2,385,644x = 4,972,474 × 4,972,474
4. Step 4: Simplify right side
   2,385,644x = 24,725,497,680,676
5. Step 5: Solve for x
   x = 24,725,497,680,676/2,385,644
6. Step 6: Final answer
   x = 10,364,286.41