Finding the Third Proportional to 3,426,674 and 5,140,740

Step by Step Solution

1. Step 1: Write the proportion equation
   3,426,674 : 5,140,740 = 5,140,740 : x
2. Step 2: Convert to fraction form
   3,426,674/5,140,740 = 5,140,740/x
3. Step 3: Cross multiply
   3,426,674x = 5,140,740 × 5,140,740
4. Step 4: Simplify right side
   3,426,674x = 26,427,207,747,600
5. Step 5: Solve for x
   x = 26,427,207,747,600/3,426,674
6. Step 6: Final answer
   x = 7,712,203.66