Finding the Third Proportional to 4,660,758 and 9,969,172

Step by Step Solution

1. Step 1: Write the proportion equation
   4,660,758 : 9,969,172 = 9,969,172 : x
2. Step 2: Convert to fraction form
   4,660,758/9,969,172 = 9,969,172/x
3. Step 3: Cross multiply
   4,660,758x = 9,969,172 × 9,969,172
4. Step 4: Simplify right side
   4,660,758x = 99,384,390,365,584
5. Step 5: Solve for x
   x = 99,384,390,365,584/4,660,758
6. Step 6: Final answer
   x = 21,323,653.87