Finding the Third Proportional to 20,568,529 and 42,731,370

Step by Step Solution

1. Step 1: Write the proportion equation
   20,568,529 : 42,731,370 = 42,731,370 : x
2. Step 2: Convert to fraction form
   20,568,529/42,731,370 = 42,731,370/x
3. Step 3: Cross multiply
   20,568,529x = 42,731,370 × 42,731,370
4. Step 4: Simplify right side
   20,568,529x = 1,825,969,982,076,900
5. Step 5: Solve for x
   x = 1,825,969,982,076,900/20,568,529
6. Step 6: Final answer
   x = 88,774,942.64