Finding the Third Proportional to 9,617,139 and 20,307,366

Step by Step Solution

1. Step 1: Write the proportion equation
   9,617,139 : 20,307,366 = 20,307,366 : x
2. Step 2: Convert to fraction form
   9,617,139/20,307,366 = 20,307,366/x
3. Step 3: Cross multiply
   9,617,139x = 20,307,366 × 20,307,366
4. Step 4: Simplify right side
   9,617,139x = 412,389,113,857,956
5. Step 5: Solve for x
   x = 412,389,113,857,956/9,617,139
6. Step 6: Final answer
   x = 42,880,644.01