Finding the Third Proportional to 12,485,642,314 and 18,039,597,012

Step by Step Solution

1. Step 1: Write the proportion equation
   12,485,642,314 : 18,039,597,012 = 18,039,597,012 : x
2. Step 2: Convert to fraction form
   12,485,642,314/18,039,597,012 = 18,039,597,012/x
3. Step 3: Cross multiply
   12,485,642,314x = 18,039,597,012 × 18,039,597,012
4. Step 4: Simplify right side
   12,485,642,314x = 325,427,060,355,359,309,824
5. Step 5: Solve for x
   x = 325,427,060,355,359,309,824/12,485,642,314
6. Step 6: Final answer
   x = 26,064,102,444.33