Finding the Third Proportional to 20,568,530 and 42,731,376

Step by Step Solution

1. Step 1: Write the proportion equation
   20,568,530 : 42,731,376 = 42,731,376 : x
2. Step 2: Convert to fraction form
   20,568,530/42,731,376 = 42,731,376/x
3. Step 3: Cross multiply
   20,568,530x = 42,731,376 × 42,731,376
4. Step 4: Simplify right side
   20,568,530x = 1,825,970,494,853,376
5. Step 5: Solve for x
   x = 1,825,970,494,853,376/20,568,530
6. Step 6: Final answer
   x = 88,774,963.25