Finding the Third Proportional to 9,638,544 and 20,271,076

Step by Step Solution

1. Step 1: Write the proportion equation
   9,638,544 : 20,271,076 = 20,271,076 : x
2. Step 2: Convert to fraction form
   9,638,544/20,271,076 = 20,271,076/x
3. Step 3: Cross multiply
   9,638,544x = 20,271,076 × 20,271,076
4. Step 4: Simplify right side
   9,638,544x = 410,916,522,197,776
5. Step 5: Solve for x
   x = 410,916,522,197,776/9,638,544
6. Step 6: Final answer
   x = 42,632,634.37