Finding the Third Proportional to 79,978,891,495 and 171,994,331,141

Step by Step Solution

1. Step 1: Write the proportion equation
   79,978,891,495 : 171,994,331,141 = 171,994,331,141 : x
2. Step 2: Convert to fraction form
   79,978,891,495/171,994,331,141 = 171,994,331,141/x
3. Step 3: Cross multiply
   79,978,891,495x = 171,994,331,141 × 171,994,331,141
4. Step 4: Simplify right side
   79,978,891,495x = 29,582,049,944,639,960,514,560
5. Step 5: Solve for x
   x = 29,582,049,944,639,960,514,560/79,978,891,495
6. Step 6: Final answer
   x = 369,873,217,691.31