Finding the Third Proportional to 9,617,160 and 20,307,408

Step by Step Solution

1. Step 1: Write the proportion equation
   9,617,160 : 20,307,408 = 20,307,408 : x
2. Step 2: Convert to fraction form
   9,617,160/20,307,408 = 20,307,408/x
3. Step 3: Cross multiply
   9,617,160x = 20,307,408 × 20,307,408
4. Step 4: Simplify right side
   9,617,160x = 412,390,819,678,464
5. Step 5: Solve for x
   x = 412,390,819,678,464/9,617,160
6. Step 6: Final answer
   x = 42,880,727.75