Finding the Third Proportional to 9,970,190 and 21,641,969

Step by Step Solution

1. Step 1: Write the proportion equation
   9,970,190 : 21,641,969 = 21,641,969 : x
2. Step 2: Convert to fraction form
   9,970,190/21,641,969 = 21,641,969/x
3. Step 3: Cross multiply
   9,970,190x = 21,641,969 × 21,641,969
4. Step 4: Simplify right side
   9,970,190x = 468,374,822,196,961
5. Step 5: Solve for x
   x = 468,374,822,196,961/9,970,190
6. Step 6: Final answer
   x = 46,977,522.21