Finding the Third Proportional to 205,535,452 and 279,951,870

Step by Step Solution

1. Step 1: Write the proportion equation
   205,535,452 : 279,951,870 = 279,951,870 : x
2. Step 2: Convert to fraction form
   205,535,452/279,951,870 = 279,951,870/x
3. Step 3: Cross multiply
   205,535,452x = 279,951,870 × 279,951,870
4. Step 4: Simplify right side
   205,535,452x = 78,373,049,516,496,896
5. Step 5: Solve for x
   x = 78,373,049,516,496,896/205,535,452
6. Step 6: Final answer
   x = 381,311,587.63