Finding the Third Proportional to 2,181,444 and 4,686,727.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181,444 : 4,686,727.50 = 4,686,727.50 : x
2. Step 2: Convert to fraction form
   2,181,444/4,686,727.50 = 4,686,727.50/x
3. Step 3: Cross multiply
   2,181,444x = 4,686,727.50 × 4,686,727.50
4. Step 4: Simplify right side
   2,181,444x = 21,965,414,659,256.25
5. Step 5: Solve for x
   x = 21,965,414,659,256.25/2,181,444
6. Step 6: Final answer
   x = 10,069,208.59