Finding the Third Proportional to 9,836,465,506 and 21,243,479,108

Step by Step Solution

1. Step 1: Write the proportion equation
   9,836,465,506 : 21,243,479,108 = 21,243,479,108 : x
2. Step 2: Convert to fraction form
   9,836,465,506/21,243,479,108 = 21,243,479,108/x
3. Step 3: Cross multiply
   9,836,465,506x = 21,243,479,108 × 21,243,479,108
4. Step 4: Simplify right side
   9,836,465,506x = 451,285,404,612,032,462,848
5. Step 5: Solve for x
   x = 451,285,404,612,032,462,848/9,836,465,506
6. Step 6: Final answer
   x = 45,878,817,379.75