Finding the Third Proportional to 10,427,436 and 21,808,260

Step by Step Solution

1. Step 1: Write the proportion equation
   10,427,436 : 21,808,260 = 21,808,260 : x
2. Step 2: Convert to fraction form
   10,427,436/21,808,260 = 21,808,260/x
3. Step 3: Cross multiply
   10,427,436x = 21,808,260 × 21,808,260
4. Step 4: Simplify right side
   10,427,436x = 475,600,204,227,600
5. Step 5: Solve for x
   x = 475,600,204,227,600/10,427,436
6. Step 6: Final answer
   x = 45,610,464.95