Finding the Third Proportional to 3,465,766.50 and 7,728,426

Step by Step Solution

1. Step 1: Write the proportion equation
   3,465,766.50 : 7,728,426 = 7,728,426 : x
2. Step 2: Convert to fraction form
   3,465,766.50/7,728,426 = 7,728,426/x
3. Step 3: Cross multiply
   3,465,766.50x = 7,728,426 × 7,728,426
4. Step 4: Simplify right side
   3,465,766.50x = 59,728,568,437,476
5. Step 5: Solve for x
   x = 59,728,568,437,476/3,465,766.50
6. Step 6: Final answer
   x = 17,233,869.75