Finding the Third Proportional to 21,978,810 and 32,309,721

Step by Step Solution

1. Step 1: Write the proportion equation
   21,978,810 : 32,309,721 = 32,309,721 : x
2. Step 2: Convert to fraction form
   21,978,810/32,309,721 = 32,309,721/x
3. Step 3: Cross multiply
   21,978,810x = 32,309,721 × 32,309,721
4. Step 4: Simplify right side
   21,978,810x = 1,043,918,071,097,841
5. Step 5: Solve for x
   x = 1,043,918,071,097,841/21,978,810
6. Step 6: Final answer
   x = 47,496,569.25