Finding the Third Proportional to 5,206,268 and 10,666,210

Step by Step Solution

1. Step 1: Write the proportion equation
   5,206,268 : 10,666,210 = 10,666,210 : x
2. Step 2: Convert to fraction form
   5,206,268/10,666,210 = 10,666,210/x
3. Step 3: Cross multiply
   5,206,268x = 10,666,210 × 10,666,210
4. Step 4: Simplify right side
   5,206,268x = 113,768,035,764,100
5. Step 5: Solve for x
   x = 113,768,035,764,100/5,206,268
6. Step 6: Final answer
   x = 21,852,128.20