Finding the Third Proportional to 12,763,709,824 and 19,606,621,056

Step by Step Solution

1. Step 1: Write the proportion equation
   12,763,709,824 : 19,606,621,056 = 19,606,621,056 : x
2. Step 2: Convert to fraction form
   12,763,709,824/19,606,621,056 = 19,606,621,056/x
3. Step 3: Cross multiply
   12,763,709,824x = 19,606,621,056 × 19,606,621,056
4. Step 4: Simplify right side
   12,763,709,824x = 384,419,589,233,582,538,752
5. Step 5: Solve for x
   x = 384,419,589,233,582,538,752/12,763,709,824
6. Step 6: Final answer
   x = 30,118,170,542.45