Finding the Third Proportional to 10,402,402 and 13,802,874

Step by Step Solution

1. Step 1: Write the proportion equation
   10,402,402 : 13,802,874 = 13,802,874 : x
2. Step 2: Convert to fraction form
   10,402,402/13,802,874 = 13,802,874/x
3. Step 3: Cross multiply
   10,402,402x = 13,802,874 × 13,802,874
4. Step 4: Simplify right side
   10,402,402x = 190,519,330,659,876
5. Step 5: Solve for x
   x = 190,519,330,659,876/10,402,402
6. Step 6: Final answer
   x = 18,314,936.36