Finding the Third Proportional to 4,494,684 and 9,905,586

Step by Step Solution

1. Step 1: Write the proportion equation
   4,494,684 : 9,905,586 = 9,905,586 : x
2. Step 2: Convert to fraction form
   4,494,684/9,905,586 = 9,905,586/x
3. Step 3: Cross multiply
   4,494,684x = 9,905,586 × 9,905,586
4. Step 4: Simplify right side
   4,494,684x = 98,120,634,003,396
5. Step 5: Solve for x
   x = 98,120,634,003,396/4,494,684
6. Step 6: Final answer
   x = 21,830,374.28