Finding the Third Proportional to 4,486,320 and 9,784,665

Step by Step Solution

1. Step 1: Write the proportion equation
   4,486,320 : 9,784,665 = 9,784,665 : x
2. Step 2: Convert to fraction form
   4,486,320/9,784,665 = 9,784,665/x
3. Step 3: Cross multiply
   4,486,320x = 9,784,665 × 9,784,665
4. Step 4: Simplify right side
   4,486,320x = 95,739,669,162,225
5. Step 5: Solve for x
   x = 95,739,669,162,225/4,486,320
6. Step 6: Final answer
   x = 21,340,356.72