Finding the Third Proportional to 8,620,997 and 13,523,768

Step by Step Solution

1. Step 1: Write the proportion equation
   8,620,997 : 13,523,768 = 13,523,768 : x
2. Step 2: Convert to fraction form
   8,620,997/13,523,768 = 13,523,768/x
3. Step 3: Cross multiply
   8,620,997x = 13,523,768 × 13,523,768
4. Step 4: Simplify right side
   8,620,997x = 182,892,300,917,824
5. Step 5: Solve for x
   x = 182,892,300,917,824/8,620,997
6. Step 6: Final answer
   x = 21,214,750.56