Finding the Third Proportional to 7,863,053,858 and 17,207,155,780

Step by Step Solution

1. Step 1: Write the proportion equation
   7,863,053,858 : 17,207,155,780 = 17,207,155,780 : x
2. Step 2: Convert to fraction form
   7,863,053,858/17,207,155,780 = 17,207,155,780/x
3. Step 3: Cross multiply
   7,863,053,858x = 17,207,155,780 × 17,207,155,780
4. Step 4: Simplify right side
   7,863,053,858x = 296,086,210,037,187,411,968
5. Step 5: Solve for x
   x = 296,086,210,037,187,411,968/7,863,053,858
6. Step 6: Final answer
   x = 37,655,370,977.26