Finding the Third Proportional to 20,302,812 and 42,278,650

Step by Step Solution

1. Step 1: Write the proportion equation
   20,302,812 : 42,278,650 = 42,278,650 : x
2. Step 2: Convert to fraction form
   20,302,812/42,278,650 = 42,278,650/x
3. Step 3: Cross multiply
   20,302,812x = 42,278,650 × 42,278,650
4. Step 4: Simplify right side
   20,302,812x = 1,787,484,245,822,500
5. Step 5: Solve for x
   x = 1,787,484,245,822,500/20,302,812
6. Step 6: Final answer
   x = 88,041,215.46