Finding the Third Proportional to 17,697,339,786 and 37,918,963,431

Step by Step Solution

1. Step 1: Write the proportion equation
   17,697,339,786 : 37,918,963,431 = 37,918,963,431 : x
2. Step 2: Convert to fraction form
   17,697,339,786/37,918,963,431 = 37,918,963,431/x
3. Step 3: Cross multiply
   17,697,339,786x = 37,918,963,431 × 37,918,963,431
4. Step 4: Simplify right side
   17,697,339,786x = 1,437,847,787,681,515,307,008
5. Step 5: Solve for x
   x = 1,437,847,787,681,515,307,008/17,697,339,786
6. Step 6: Final answer
   x = 81,246,549,202.78