Finding the Third Proportional to 79,978,891,456.50 and 171,994,331,073

Step by Step Solution

1. Step 1: Write the proportion equation
   79,978,891,456.50 : 171,994,331,073 = 171,994,331,073 : x
2. Step 2: Convert to fraction form
   79,978,891,456.50/171,994,331,073 = 171,994,331,073/x
3. Step 3: Cross multiply
   79,978,891,456.50x = 171,994,331,073 × 171,994,331,073
4. Step 4: Simplify right side
   79,978,891,456.50x = 29,582,049,921,248,733,954,048
5. Step 5: Solve for x
   x = 29,582,049,921,248,733,954,048/79,978,891,456.50
6. Step 6: Final answer
   x = 369,873,217,576.89