Finding the Third Proportional to 20,302,847 and 42,278,743

Step by Step Solution

1. Step 1: Write the proportion equation
   20,302,847 : 42,278,743 = 42,278,743 : x
2. Step 2: Convert to fraction form
   20,302,847/42,278,743 = 42,278,743/x
3. Step 3: Cross multiply
   20,302,847x = 42,278,743 × 42,278,743
4. Step 4: Simplify right side
   20,302,847x = 1,787,492,109,660,049
5. Step 5: Solve for x
   x = 1,787,492,109,660,049/20,302,847
6. Step 6: Final answer
   x = 88,041,451.02