Finding the Third Proportional to 3,490,965.84 and 5,419,131.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,490,965.84 : 5,419,131.61 = 5,419,131.61 : x
2. Step 2: Convert to fraction form
   3,490,965.84/5,419,131.61 = 5,419,131.61/x
3. Step 3: Cross multiply
   3,490,965.84x = 5,419,131.61 × 5,419,131.61
4. Step 4: Simplify right side
   3,490,965.84x = 29,366,987,399,727.28
5. Step 5: Solve for x
   x = 29,366,987,399,727.28/3,490,965.84
6. Step 6: Final answer
   x = 8,412,281.50