Finding the Third Proportional to 3,429,070 and 7,374,270

Step by Step Solution

1. Step 1: Write the proportion equation
   3,429,070 : 7,374,270 = 7,374,270 : x
2. Step 2: Convert to fraction form
   3,429,070/7,374,270 = 7,374,270/x
3. Step 3: Cross multiply
   3,429,070x = 7,374,270 × 7,374,270
4. Step 4: Simplify right side
   3,429,070x = 54,379,858,032,900
5. Step 5: Solve for x
   x = 54,379,858,032,900/3,429,070
6. Step 6: Final answer
   x = 15,858,485.84