Finding the Third Proportional to 10,402,434 and 13,802,916

Step by Step Solution

1. Step 1: Write the proportion equation
   10,402,434 : 13,802,916 = 13,802,916 : x
2. Step 2: Convert to fraction form
   10,402,434/13,802,916 = 13,802,916/x
3. Step 3: Cross multiply
   10,402,434x = 13,802,916 × 13,802,916
4. Step 4: Simplify right side
   10,402,434x = 190,520,490,103,056
5. Step 5: Solve for x
   x = 190,520,490,103,056/10,402,434
6. Step 6: Final answer
   x = 18,314,991.48