Finding the Third Proportional to 105,818,719 and 215,888,946

Step by Step Solution

1. Step 1: Write the proportion equation
   105,818,719 : 215,888,946 = 215,888,946 : x
2. Step 2: Convert to fraction form
   105,818,719/215,888,946 = 215,888,946/x
3. Step 3: Cross multiply
   105,818,719x = 215,888,946 × 215,888,946
4. Step 4: Simplify right side
   105,818,719x = 46,608,037,004,990,912
5. Step 5: Solve for x
   x = 46,608,037,004,990,912/105,818,719
6. Step 6: Final answer
   x = 440,451,722.02