Finding the Third Proportional to 20,632,453 and 42,939,491

Step by Step Solution

1. Step 1: Write the proportion equation
   20,632,453 : 42,939,491 = 42,939,491 : x
2. Step 2: Convert to fraction form
   20,632,453/42,939,491 = 42,939,491/x
3. Step 3: Cross multiply
   20,632,453x = 42,939,491 × 42,939,491
4. Step 4: Simplify right side
   20,632,453x = 1,843,799,887,339,081
5. Step 5: Solve for x
   x = 1,843,799,887,339,081/20,632,453
6. Step 6: Final answer
   x = 89,364,065.79