Finding the Third Proportional to 4,660,874 and 9,969,364

Step by Step Solution

1. Step 1: Write the proportion equation
   4,660,874 : 9,969,364 = 9,969,364 : x
2. Step 2: Convert to fraction form
   4,660,874/9,969,364 = 9,969,364/x
3. Step 3: Cross multiply
   4,660,874x = 9,969,364 × 9,969,364
4. Step 4: Simplify right side
   4,660,874x = 99,388,218,564,496
5. Step 5: Solve for x
   x = 99,388,218,564,496/4,660,874
6. Step 6: Final answer
   x = 21,323,944.51