Finding the Third Proportional to 300,818,511,676.50 and 455,096,705,754.75

Step by Step Solution

1. Step 1: Write the proportion equation
   300,818,511,676.50 : 455,096,705,754.75 = 455,096,705,754.75 : x
2. Step 2: Convert to fraction form
   300,818,511,676.50/455,096,705,754.75 = 455,096,705,754.75/x
3. Step 3: Cross multiply
   300,818,511,676.50x = 455,096,705,754.75 × 455,096,705,754.75
4. Step 4: Simplify right side
   300,818,511,676.50x = 207,113,011,588,825,503,236,096
5. Step 5: Solve for x
   x = 207,113,011,588,825,503,236,096/300,818,511,676.50
6. Step 6: Final answer
   x = 688,498,225,839.09