Finding the Third Proportional to 12,103,978,104 and 18,985,849,596

Step by Step Solution

1. Step 1: Write the proportion equation
   12,103,978,104 : 18,985,849,596 = 18,985,849,596 : x
2. Step 2: Convert to fraction form
   12,103,978,104/18,985,849,596 = 18,985,849,596/x
3. Step 3: Cross multiply
   12,103,978,104x = 18,985,849,596 × 18,985,849,596
4. Step 4: Simplify right side
   12,103,978,104x = 360,462,484,881,933,336,576
5. Step 5: Solve for x
   x = 360,462,484,881,933,336,576/12,103,978,104
6. Step 6: Final answer
   x = 29,780,497,104.73