Finding the Third Proportional to 9,858,482,844 and 21,921,181,752

Step by Step Solution

1. Step 1: Write the proportion equation
   9,858,482,844 : 21,921,181,752 = 21,921,181,752 : x
2. Step 2: Convert to fraction form
   9,858,482,844/21,921,181,752 = 21,921,181,752/x
3. Step 3: Cross multiply
   9,858,482,844x = 21,921,181,752 × 21,921,181,752
4. Step 4: Simplify right side
   9,858,482,844x = 480,538,209,404,217,786,368
5. Step 5: Solve for x
   x = 480,538,209,404,217,786,368/9,858,482,844
6. Step 6: Final answer
   x = 48,743,626,885.42