Finding the Third Proportional to 3,431,407 and 7,427,627

Step by Step Solution

1. Step 1: Write the proportion equation
   3,431,407 : 7,427,627 = 7,427,627 : x
2. Step 2: Convert to fraction form
   3,431,407/7,427,627 = 7,427,627/x
3. Step 3: Cross multiply
   3,431,407x = 7,427,627 × 7,427,627
4. Step 4: Simplify right side
   3,431,407x = 55,169,642,851,129
5. Step 5: Solve for x
   x = 55,169,642,851,129/3,431,407
6. Step 6: Final answer
   x = 16,077,848.78