Finding the Third Proportional to 10,402,419 and 13,802,898

Step by Step Solution

1. Step 1: Write the proportion equation
   10,402,419 : 13,802,898 = 13,802,898 : x
2. Step 2: Convert to fraction form
   10,402,419/13,802,898 = 13,802,898/x
3. Step 3: Cross multiply
   10,402,419x = 13,802,898 × 13,802,898
4. Step 4: Simplify right side
   10,402,419x = 190,519,993,198,404
5. Step 5: Solve for x
   x = 190,519,993,198,404/10,402,419
6. Step 6: Final answer
   x = 18,314,970.12