Finding the Third Proportional to 19,217,957,404,236 and 42,107,455,623,918

Step by Step Solution

1. Step 1: Write the proportion equation
   19,217,957,404,236 : 42,107,455,623,918 = 42,107,455,623,918 : x
2. Step 2: Convert to fraction form
   19,217,957,404,236/42,107,455,623,918 = 42,107,455,623,918/x
3. Step 3: Cross multiply
   19,217,957,404,236x = 42,107,455,623,918 × 42,107,455,623,918
4. Step 4: Simplify right side
   19,217,957,404,236x = 1,773,037,819,120,223,497,278,717,952
5. Step 5: Solve for x
   x = 1,773,037,819,120,223,497,278,717,952/19,217,957,404,236
6. Step 6: Final answer
   x = 92,259,431,209,344.47