Finding the Third Proportional to 1,427,424 and 3,138,736

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427,424 : 3,138,736 = 3,138,736 : x
2. Step 2: Convert to fraction form
   1,427,424/3,138,736 = 3,138,736/x
3. Step 3: Cross multiply
   1,427,424x = 3,138,736 × 3,138,736
4. Step 4: Simplify right side
   1,427,424x = 9,851,663,677,696
5. Step 5: Solve for x
   x = 9,851,663,677,696/1,427,424
6. Step 6: Final answer
   x = 6,901,708.03