Finding the Third Proportional to 9,212,507,622 and 19,892,988,148.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,212,507,622 : 19,892,988,148.50 = 19,892,988,148.50 : x
2. Step 2: Convert to fraction form
   9,212,507,622/19,892,988,148.50 = 19,892,988,148.50/x
3. Step 3: Cross multiply
   9,212,507,622x = 19,892,988,148.50 × 19,892,988,148.50
4. Step 4: Simplify right side
   9,212,507,622x = 395,730,977,476,361,453,568
5. Step 5: Solve for x
   x = 395,730,977,476,361,453,568/9,212,507,622
6. Step 6: Final answer
   x = 42,955,837,185.02