Finding the Third Proportional to 19,723,413,250 and 42,239,491,364

Step by Step Solution

1. Step 1: Write the proportion equation
   19,723,413,250 : 42,239,491,364 = 42,239,491,364 : x
2. Step 2: Convert to fraction form
   19,723,413,250/42,239,491,364 = 42,239,491,364/x
3. Step 3: Cross multiply
   19,723,413,250x = 42,239,491,364 × 42,239,491,364
4. Step 4: Simplify right side
   19,723,413,250x = 1,784,174,630,689,430,568,960
5. Step 5: Solve for x
   x = 1,784,174,630,689,430,568,960/19,723,413,250
6. Step 6: Final answer
   x = 90,459,729,666.18