Finding the Third Proportional to 300,818,511,688 and 455,096,705,772

Step by Step Solution

1. Step 1: Write the proportion equation
   300,818,511,688 : 455,096,705,772 = 455,096,705,772 : x
2. Step 2: Convert to fraction form
   300,818,511,688/455,096,705,772 = 455,096,705,772/x
3. Step 3: Cross multiply
   300,818,511,688x = 455,096,705,772 × 455,096,705,772
4. Step 4: Simplify right side
   300,818,511,688x = 207,113,011,604,526,326,611,968
5. Step 5: Solve for x
   x = 207,113,011,604,526,326,611,968/300,818,511,688
6. Step 6: Final answer
   x = 688,498,225,864.96