Finding the Third Proportional to 4,443,632 and 9,690,064

Step by Step Solution

1. Step 1: Write the proportion equation
   4,443,632 : 9,690,064 = 9,690,064 : x
2. Step 2: Convert to fraction form
   4,443,632/9,690,064 = 9,690,064/x
3. Step 3: Cross multiply
   4,443,632x = 9,690,064 × 9,690,064
4. Step 4: Simplify right side
   4,443,632x = 93,897,340,324,096
5. Step 5: Solve for x
   x = 93,897,340,324,096/4,443,632
6. Step 6: Final answer
   x = 21,130,764.28