Finding the Third Proportional to 3,429,072 and 7,374,274

Step by Step Solution

1. Step 1: Write the proportion equation
   3,429,072 : 7,374,274 = 7,374,274 : x
2. Step 2: Convert to fraction form
   3,429,072/7,374,274 = 7,374,274/x
3. Step 3: Cross multiply
   3,429,072x = 7,374,274 × 7,374,274
4. Step 4: Simplify right side
   3,429,072x = 54,379,917,027,076
5. Step 5: Solve for x
   x = 54,379,917,027,076/3,429,072
6. Step 6: Final answer
   x = 15,858,493.79