Finding the Third Proportional to 20,632,449 and 42,939,483

Step by Step Solution

1. Step 1: Write the proportion equation
   20,632,449 : 42,939,483 = 42,939,483 : x
2. Step 2: Convert to fraction form
   20,632,449/42,939,483 = 42,939,483/x
3. Step 3: Cross multiply
   20,632,449x = 42,939,483 × 42,939,483
4. Step 4: Simplify right side
   20,632,449x = 1,843,799,200,307,289
5. Step 5: Solve for x
   x = 1,843,799,200,307,289/20,632,449
6. Step 6: Final answer
   x = 89,364,049.82